Lenovo z50 70 is really fast and reliable laptop .
look:- stylish metalic silver color looks like a metal body. very slim as compare to other laptop. low weight thats why you can travel with easily without harashment.
Battery:- good battery backup.
Graphics card:- lenovo provide NVIDIA GEFORCE 2gb graphics card. it give fantastic experience when you play high quality games, when you play high resolution videos.
I bought it before 2 years. still there is no problem even little bit also.