Can opener with initial problems

Ordered items and delivered a day later, Prima.
Unwrapped, all io, but no leaflet available, bad.
Nevertheless, a tin of 800g content attempts to open, it was hang bit fiddly, and after about 2 cm cut was concluded deadlocked. Needed several attempts to open the can.
Have then try smaller, this he opened without problems and also raises properly after opening from.
Meanwhile, he also opens the large doses, you have to let go of the can after hanging, then klappt`s, with instructions it would certainly smooth gone straight.
The einbebauten bottle opener and knife sharpener I have not tried it yet.
The opener is actually used by my wife and I do not need help as voher with the driven manually openers.
Therefore, I can recommend this opener definitely.