delivery is not satisfied but product is very good.

It's perfect except for the slow charging speed. And the heat is somewhat due to the wireless charging and the thin battery, but it gets hot if you warm it in your pocket or put it on an electric blanket or heating floor in the bedroom. Of course, even if you charge while running a hard program like a game... Oh right, and there is no charging noise.

When wearing a phone case, the charging speed is slower than other MAX chargers. It's the status quo level. The case is pretty thin though. You have to take it out unconditionally to charge it. I bought it knowing that it is small for a 12 mini, so I like everything, but the wire is very short. If you do that, it dangles in the middle of the desk, making it difficult to connect the wires within the proper distance. In the end, you have to attach it to the end of the desk or turn the power strip upside down on the desk. Still, this isn't a big deal