Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Stuck Lens Cover

I am a long time owner of Canon SLRs, but I have to admit that I am not impressed with their Powershot "A" line. I have had a number of models, three of which I had lens cover problems with (they do not fully open). I've ruined a lot of pictures with this problem. Canon could seem not to care less. I also find that I hate having to flip a switch to go into review mode, as the lens retracts. That's completely lame. I have also found the menus to be non-intuitive, especially around picture management (delete, etc). All in all, despite the raves about picture quality, I think this is an inferior product from a human factors and build quality standpoint. I would not recommend it, nor will I buy another Canon A series camera.