I am using this phone for the past four years.Since then a lot of updates are released and in this year they are going to launch marshamallow.The 4 ultrapixel camera is the best camera against all the odds in sunlight.In night time it performs well.This is the first metal phone in world.With beats audio in-built speakers the sound quality is damn good.The front camera is good.Even though I used this phone very rashly phone is still working completely fine.and its worth of 43k at the time of its release.Very easy to customize everything in the phone.one thing it lacks now is battery backup, with the change in time battery should be able to keep the phone alive for many hours but this phone got only 2300mah battery and I think I will use this phone for few years from now.