+Fits my OnePlus 7T with a Spigen case with no problem. I did have to remove the small rubber padding pieces on the back near the corners to really get a 100% fit - so keep that in mind...
+D-pad is a little mushy, but is responsive enough to use for fighting games.
+Buttons are clicky and respond well.
+No noticeable lag while playing.
-Build quality is a little sketch, but I think this may be the nature of these types of controllers.
-Probably won't fit a Note 20
I have been working with a PS4 controller on a mount for a while now but the weight balance is all messed up with these phone mounts. This controller still gives a good hand grip for playing and removes the weight balance issues.