I am using j7 for last 1.5 years. No problem faced till now. Its one of the best smartphone in your budget. Battery is good. Both side flash help you taking picture anytime. Best is palm detector while taking selfie. ram is only 1.5 gb but there is no problem with that. Bike mode is awesome. Picture quality is very good 13mp at back and 5 mp at front.stylish looks helps you look smart.