Its one of the best phone of 2015. No issue at all using from the date of its first flash sale now on Cm12.1 android 5.1.1. Here are list of pros
Fast charging - this phone charge fast yes really fast in about 1.5 hrs battery get fully charged
Superb Front Cam - This phone is winner in this department for sure with 5 mp wide angel selfie camera it provides great output.
3.Customizable - With CyanogenMod u can highly customize phone themes, settings & ui as per need.
4.Performance- I played every high end game without lags.
Cons
Just a lake of notification light & No Otg pendrive support.
Overall phone looks and software is very stunning and it works great for me.
And yes it also support Rooting so a great option for all superusers