Alhamdolillah, using Sony Xperia U and it's about to be a month.. Have never faced any single problem.
It is a good quality phone for it's price... Iv compared HTC and Samsung and none of those offered similar value under 18ks tag.
Best thing is that it comes with 2 screen protectors, 3 sets of ear piece rubbers... And one replaceable fancy plastic casing part.
I'm satisfied with my purchase and I don't over burden this small phone with alota stuff... All 512mb ram android phones would hang or lag... The trick is to restart them each time after you run a heavy game/app...
For better performance get a 1gb ram phone at least..
& yes for texting I have a Nokia 1616
evergreen!
Sent from my Sony Xperia U using PW Forums mobile app