I am using Yureka over two years and I have not seen any problem in this phone except its battery backup. The worst thing of this phone is its battery backup. After using this phone over seven months is battery problems had started. Sometimes it should not charge and it becomes heat up. But afer some updates its heating issue solved but the battery backup is not good. The best thing of this phone is it has Cynogen mod which gives you unique features like you can change the booting text and font desingn etc and its has Corning Gorilla Glass and It supports 4g . Its is camera is quite well . All over this phone is up-to-mark and its performance is good.