I bought this phone a year ago but till now I ain’t had any problem. The best utility feature in this phone is POLARIS office app, you can edit any presentation you have made in your laptop it is much better than adobe. Another best utility of this phone is stand by time, if you had 80% battery in the morning it will be 80% or 79% in the afternoon in stand by mode.all the aspects of phone are good. Wish they have provided with large memory. it comes with 4gb internal memory that is the very bad feauture of this phone. But you can move any app to sd card, that is why I had no problem. it is running in the android version of 4.2 jelly bean but it is faster than android 5.0 lollipop.