I like the controller. If I was reviewing the controller in and of itself: 5/5. It has missed some inputs here and there, but mostly this is when the iOS seems to be working hard, or a low battery situation, or a combination of the two, so I can't quite fault the controller when it's the phone itself having issues. This is a bit of a meta-review, looking at what it takes to use the backbone. I don't know if it's fair to dock a star since the issue is that I have to remove my phone from its case to use the backbone, and only maniacs are walking around with a 1000$ phone sans case. So literally any gaming controller thing is going to have the challenge of attaching to a wide variety of different cases. However, it is still annoying. I am concerned with the long-term ramifications of flexing my case off and on my phone 100s of times per year - the plastic is going to wear out sooner. The adapter works great for the 13 pro, but there's no easy way to store it in the provided backbone box. The backbone fits snugly in the cutouts WITHOUT the adapter in place, with the adapter attached it won't fit. But then the adapter is just loose wriggling around in the box. I'll probably use an Exacto knife/scissor to widen the hole on the L part of the backbone so that it can fit without having to remove the adapter just for QoL. I mean overall I'm nitpicking here, these are minor QoL issues, overall I'm really happy with the purchase and it provides a better and more ergonomic way to enjoy mobile games on my phone. I'm not much of a mobile gamer, but I've been in a bit of a "no desire to play anything" rut and diablo immortal, a new mobile game, has scratched my gaming itch and I've probably logged 100s of hours already - the backbone has made that experience a lot more enjoyable.