if you want to create beautiful materials - unsuitable

As a teacher you have to do one or the other material is durable and I want good quality.
Have the laminator once tested and unfortunately are with me both cheap laminating (Aldi) and expensive laminating films (Fellowes) wavy and the result is therefore not particularly nice.
The cutter I was also very disappointed as I lift it literally had to cut 1 paper. Here you can see in the edition also not exactly where it cut and so you have to guess the first few times and memorize it.
Crinkle cut and perforation I no longer tested.

The corner cutter is also disappointing. 50% of the corners were nice, but the rest was not cut well and so I have now for some materials corners that are half-rounds and were then folded from the corner cutter. So what is not good.
Have the equipment purchased through Ebay and also returned.
Get again translated to discrete content items and am also looking for a good but inexpensive laminator for A3 format.