Very pleased with this controller. Love the fact that I can play games with my family on the go, and with a quality comparable to the switch. I ended up buying 3 units (one for myself, my wife, and my son). We all own iPhones (8 plus and X). Unfortunately I can’t give this controller 5 stars because with each controller we purchased there seems to be there own individual defect. The first one I purchased for my wife has a very sticky A button - very unfortunate when being in the midst of a battle and you can’t predict your own moves. The second one I purchased for my son seems to periodically lose connection with his iPhone and has to be reset in the middle of a game. The last one I purchased for myself doesn’t have any physical issues other than the backbone app not booting up correctly the first two times it’s launched (not allowing me to launch a game from the app). I would highly recommended this controller to anyone (and I have), and would strongly urge the backbone team to keep on making improvements and comparability enhancements.