I have been using Lenovo k3 note scince 2 month .it has a good slim look smart phone.the battery backup is also fine.camera is also asusual . functioning is also fine .but the main problem in this smartphones is heating issue while gameing and browsing.it become like iron .the best thing I like is the fast charging.battery fully get charged within 1 hour only.and the Dolby sound quality.i think think the money I have given for this phone is not like that.the features on this phone is as usual nothing extra to attract people to buy.