Brought from abroad a year and a half ago, I have been using it single-handedly for that time. There are no issues. Six months ago, it fell from my hand and the top corner of the touch screen cracked slightly, but it causes no problems. Other than that, there isn't even a hair-thin issue. It works perfectly; if you want a good quality phone, you can buy it with confidence. Oppo A78, RAM 8+4, ROM 256.