I’m using my k310i for past 5 months. Its really great value for what you pay and person like me who is not that tech crazy its is a allrounder package. Got a problem with sound reception at times which I didn’t time to resolve. Otherwise its great buy, ie if you think logically.
Another factor which influenced me is its durablity, had couple of rough falls and my k310i is intact. Intially it was a bit tough to use as previously I was using a nokia but once you are used to it you wont regret your decision.
Even though k310i is of lesser value, it looks cool and some of my friends complemented me on this. Another advantage k310i has over competitor products is that you will get decent features and looks. The size of the screen is also impressive.
I was really afriad of the battery backup before buying my k310i and now I realised that sony ericcson is not at all inferior to any brands available in the market.
Regards
jeffin