Im using k3 note since last September. There is no problem regarding this phone. If you heard about heating issue, forget it.Thats normal. The only thing I have noticed that camera quality get poorer. But clearity of front camera is amazing. If you are hardcore game lover, this phone may not suit you. If you are surfing buddy go for it. There's alot to do in the phone. it has battery problem now .it takes too much time 3.5 hours to fulfilled. & it's draining very fast now.as I update it to marshmallow it's totally changed. So what to do.