First of all, thanks again for all the comments.
Well, I finally decided to get one. They didn't have the 16GB version, so I picked the 32GB one (manufactured on 07/2013). I updated it to the latest firmware available. So far I'm still testing it and the things I found were:
- Multitouch issues when not holding it or charging it. -> I assume this one is to be expected, since I read that it's a grounding issue.
Heavy battery drain on standby. -> After the update and shutting down wifi on suspended state, no issues at all with battery drain.
- GPS finding but not locking on satellites. -> Needs more testing, since I didn't try it on an open sky. Before the update it didn't even find any satellites, so I assume it's because not going to be an issue.
Well, everything else works like a charm so far. The only real issues seems to be the multitouch issues while not holding it. Can't complain too much, since I got it 50$ cheaper than usual.
EDIT: Forgot to mention, no reboots or freezes after a week of heavy usage.