Tested - Conclusion: VERY GOOD

I can only say: a "Super Alternative" to the original cartridges from the printer manufacturer. Have a Dell c1660w.
To insert the cartridges:

To insert no great skill is required and goes by itself.
Cartridges easily (if they do not engage directly) only show the way;). Ie the lever manually press down slightly.

Holder:

The cartridges are every little bit loose, but should not scare you definitely.

Print quality:

No difference for the home user and default user of the printer type with the Dell cartridges compared to the more favorable variant here is to remember. The first 2 leaves were a bit "unclean" everything internally flawless after that.
Who buys a Dell c1660w, has used this once, knows what he can expect from the printer. For graphic artist anyway not an option, as well as for a large office.
And who would have problems, please do not only complain (as some previous speakers), but rather to ask whether the printer driver is configured correctly and / or accept help when it comes to use, cleaning etc ....

Have sheets printed, as well as photos on glossy paper, plain home office paper, etc. all at its finest!

To level and durability of the toner:

Can I unfortunately "still" do not say anything until now about 300-400 pages A4 printed (mixed S / W and Color) and the printer driver is still on the all toner is full.

My conclusion: - Buy

Price: TOP!
Qualifiers: TOP!
Use cartridges: TOP!
Durability far: also good!

If still should make mistakes etc. noticeable, I like to write a supplement to the review.

Edit:

Madness, a book have recently printed'm now putting a total of just under 1,000 pages A4, all colors. Toner level has decreased only slightly ... On the next 1,000 pages