The adhesive is really good and - contrary to the opinion of many others here - quite economical.
I have a 1000-piece jigsaw puzzle (approx 70x90) glued to about half of the tube and was not particularly lavish. The outer edge a bit more carefully about the entire picture once "high" and one "cross" in a circular motion.
The specified target of 2000 parts is therefore to create good :)
The incorporated in the cover brush the whole thing without Gematsche from the stage.
The image itself has not changed. It does not discolor, is not softened or faded. However, I can also see no special shine which was not there before.
The adhesive has a pleasant consistency that spreads easily. Not too thin and not too thick.
For the application, I recommend similar aluminum foil, but no newspaper. The puzzle glued namely (particularly at the edges, which I quite carefully processed) with the underground. On the aluminum foil, which I've used, that was no problem. But I think at a newspaper that would come not so good.
One shortcoming I find: The shipping costs are quite high, which makes the purchase from Amazon almost unlukrativ. At the store, but I would buy the product at any time and not hesitate to recommend!