I can try to answer any questions, but it doesn't seem like the 8bitdo Ultimate software is availible for download yet. Im not big into mechanical keyboards, this is actually my first, so I don't have much direct comparison experience to other keyboards.
but the buttons are big and f u n.
Holy run-on sentence, Batman!
I work in software and use my numpad pretty frequently. I'll use the top row for short sequences of numbers, but if I'm doing math or writing long numbers, i really like the convenience of the numpad. I actually did preorder this keyboard though, so i might just use an external numpad if i like the keyboard enough.