In summary it can be said that either some have got a defective device or the error occurred in the application. Some information in the reviews I've even tried to reconstruct (see below).
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Packaging (not shipping container):
The SMART MASTER 2 is supplied in a neat product packaging and well protected.
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Paper stopper:
A paper stop is used to bring the paper in a certain position for the punching process. This is very easy and can not be fixed properly, it slides back and forth with light pressure. I have therefore put some tape under the lever mechanism and now the paper stop is seated very firmly. Apart from that you do not need this stop really. Through precise recesses the paper can be aligned centrally to 21 punching.
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Punching / stamping lever:
The description says that 8 sheets each with 80gr / m² can be inserted. This number is correct, but the effort is increased, compared with a simple punch. With 10 leaves the punching stuck something and the punching lever must be pulled up. It is possible to stamp laminated sheets but thus reduces the number to 1 copy. With a stronger paper with 160gr / m² I could punch 4 leaves, but I recommend doing only 3 sheets, the effort is very high at 4 leaves. With 200gr / m² I recommend only 1 to a maximum of 2 sheets.
The 2 mm, which remain on the left and right after punching, are very little, films are almost always destroyed. I let me produce a few copies in the copy shop, there was the same problem, it must be theoretically used a slightly wider format than A4 to be. Reinpassen it would definitely, because the left and right of the unit, there is still every 8 mm overhang. The film is simply pulled with, does one realize that only when you look closely, you can just punch a page "open", would keep well and looks good.
When a sheet with 80gr / m² the 2 mm, as well as destroyed in the film as well. It should therefore always more sheets are punched. Possibly can thus be avoided in the film the problem. I have not yet tested.
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EDIT: 13/09/2014
Have it tested with 2 films each 0.2 mm thick. Thus, the film is not so badly damaged left and right. Additionally, I have considered my punching down, these are ground partly unclean, for this reason, the stamping with only a thin sheet is not easily possible. With a 160gr / m² sheet but it works flawlessly.
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The punch lever is quite stable, we must not be afraid when it comes a bit heavier, it's all quite stable and broken I have not gotten my device even though I have repeatedly punched sheets 10, as indicated.
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Binding:
That's the easiest thing in the SMART MASTER 2. Why? It is the ring binder inserted, pushed to the right in the L-teeth. Ensure that the opening facing up. Press the lever depending on the diameter of the tie back down and left at the designated blue lock lever. Thereafter, the sheets can be inserted, which are positioned on the handle. Depending on the diameter 150 sheets 80gr / m² can be loaded with several partial stacks in fact. Nothing needs to be practiced, the 21 plastic teeth standing upright there and the paper is only reared.
A 20mm combs still fits beautifully on the 2 cm tip.
Once all the leaves have been inserted, the lever is released the left, the handle is again slowly moved upward. Finish is binding!
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Accessories:
Near to restaurants! One wonders whether the price is a mistake. 25 films, 25 and 25 back stronger, structured sheets.
Have ordered but much extra material. Because I need either 8 mm or larger back as 20 mm. 10 mm with about 60 sheets I had previously not there.
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Problems from other reviews:
Paper is not punched. -> That's what I managed, I have inserted paper and the paper is not punched. Why? The paper is hooked at the first edge inside and was not under the punch.
Paper was stamped wrong. -> That's what I get. I have discovered the mistake quickly, the paper had only hooked on one side and was wrong in there.
Paper went through the surveys and the punch was 2 cm from the edge instead of away. -> I have looked inside, I can not create the paper to be inserted deeper. Either an error in the production or it is loaded with a lot of power. The stop is just listening and the paper can be easily pushed into this position, left and right. If this is not the case, the paper is not inserted properly or the unit has a defect.
Photo paper can not be punched. -> Photo paper is extremely thick and has mostly insert more than 200gr / m², I recommend only 1 sheet of photo paper.
In a certain number sheets to slide out of the ring binder. -> The problem here is that the ring binder opened too far and the 21 plastic teeth are too short. I recommend to move the lever up slightly and the ring binder to close something, then can be inserted without problems more paper.
A bond takes almost an hour. -> I had after 10 minutes after unpacking and try something a first bond with 10 sheets in my hands. After that I immediately started the mass production, 20 backs, 20 cover films and numerous paper punched binding lasted only 1-2 minutes.
Plastic back jumps of the L-teeth. -> The problem here is that you have the back open too far, this may only be opened at 10 mm diameter more than 1 cm, otherwise leiert this out or jumps out.
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Evaluation:
I love this device, it has already recorded his money, even though I own it for a few days. However, had already worked a lot with it. Expensive machines also have various shortcomings. But is it worth the extra money? The SMART MASTER 2 is included in the price and the corresponding power not surpassable. I would buy it again! When I have time, I'll make a video how easy it is to use and how fast a bond is complete. Since my printer is the brake, which for a color printing already takes time. The bonds in the copy shop are not much better than the products with this binding machine.
Although I have mentioned some shortcomings, this can not affect the 5 star. A solid device for me, where you can properly start something. How long the punches I can not say yet retain their sharpness as I would buy the same machine again.
And who says that the 2 mm left and right are not enough, should change the relevant standard and possibly adjust the A4 format. Because the combs are designed for this measure and the copy shop I have certainly received any other size. Probably there are special sizes with the associated price premium.
Thank you for reading! I answer questions like.