I have been using this device as my primary device since 1 year and in the first 6 months it was satisfying but after that it started to have many issues some of them were:
phone showed heating problems especially while heavy gaming and a bit laggy too.
battery was the biggest issue with this device it never lasted for a full working day and at the end of the day it had to be charged somewhat in the evening.
its not a device for camera enthusiasts .it is decent and can take decent pictures.
its powered by a snapdragon 410 chipset which is clocked @1.2Gz which is quad core.today for this price range there is lot more to get.
charger charges the device very slowly as its a 0.5A charger.
apps lag and are prone to restart more.
overall its a good device but is not upto the mark.