I was using micromax canvas 4 from last 3 years. In intial day, I was very pleased with the look and feel and performance of the phone. But after 2 years, phone started giving problems. The main issue with battory back up. It hardly give 6 hrs. of moderate use of phone. If you want movie, battery will not last till movie finished. If you keep brightness to high, then will drain out your battery.
The volumn and power buttons are not working. I have repaired it from authorised service center but still after 2 months of repair, it is not working again.
The maintainence of the phone is now becoming to high.