Very good controller. Very high-quality construction, and it has the texture of the 6-button controller of the Megadrive.
They say it is inspired by the Saturn controller, but the feel of pressing the buttons is the same as the Megadrive's (which in turn is very similar to the Saturn's).
The L-R buttons are not microswitch like the Saturn's, but soft rubber, they have the same texture when pressed as the other buttons.
The battery lasts 18 hours according to 8bitdo, and I believe them, since it doesn't have vibrations, etc. that would consume battery.
It connects perfectly to the PC and is recognized as 8bitdo m30. It "reads" it as an Xbox controller. It didn't bother me at all, and it doesn't disconnect.
It responds incredibly well to fighting games like Street Fighter, etc. because of the 6 buttons and the amazing D-pad.
So far, I am very satisfied with the purchase, time will tell about its durability.