Ve been using Mi 4 for the last 8 months. My experience, so far has been quiet nice. Pros: * Amazing resolution! ( No other brand provides such a great resolution at this price. I’ve seen even Samsung products with the same quoted resolution specification and colors, but the actual delivery is poor) * Camera is pretty good. * Beautiful and stylish built. * Processor is fast. No hanging while multitasking. * Strong battery back up. Quick charging battery. * No heating issues. ( Except mild heating during charging, I’ve never experienced any heating issues.) Cons: * Memory space is not expandable. * It doesn’t come with a front flash. ( Which might me acceptable) * The clicks from rear camera in low light using flash are noisy. * The sound quality is not too awesome but quite decent. * It doesn’t come with a Gorilla Glass, and it’s screen is said to be more prone to breaks.( So if you can handle it with care, Go for it! )