I have been using Lenovo k3 note for past 4 months.I haven seen more positive thing some negative thing here are they. Pros: 1.Good call quality, speaker volume and dolby. 2.Battery backup is decent with primary use. 3.Good screen, colour reproduction & responsive. 4.4G supports on both slots was awesome( but never tried on 2nd slot still now) . 5.Dual sim, 16 GB internal storage, 2 GB ram+ octa core+ decent processor A53 family and GPU. 6.light weight and decent looking. 7.Scratch card provided in the pack. 8.camera quality is just ok. Cons: 1.No headphone with the mobile. 2.vibrant speaker when you play with high sound music. 3.No gorilla glass & high SAR value. 4.13 MP camera was not worth at all. Overall at this price it was best phone and competitive in current market.