Do be aware that very few people will post "hey, bought one and it's great/troublefree." But man are we quick to vent when a problem occurs. So they build 2 million of 'em, and a single person has a problem while all the other 1,999,999 are dreams. Who do you think we're going to hear about???
So you have to take reports of problems with a grain of salt. Sure, that's how you find out where the weak spots are, and it's certainly where you go when you yourself have a problem, but a couple reports of a malfunctioning whatever do not mean that YOU will have that problem. Odds are that you will be one of the 1,999,999 who don't, truth be told.
After all, if everybody was having a particular problem, the manufacturer would be on it like a cheap suit because it would be a warranty nightmare.