[microtonal]

I don't think MS/Logitech boards go far enough even in the split department.

I agree that the split of the Advantage is nicer. However, the MS/Logitech boards do not only split, they also put the halves at an angle, compensating quite a bit for their relatively narrow split. There are some papers that investigate these compromises.

In the end it depends on the amount that you want to spend. A 420 Euro Advantage2 is probably going to be better. But the Microsoft/Logitech/Alice boards are a good compromise if you do not want to spend more than 100-200 Euro on a keyboard. Though at the 200 price point it's probably better to stretch it a little and get something split and tented like the Freestyle Edge, which sometimes goes for 200 + 30 for the tenting set from some vendors.

(Sometimes you get lucky, I found a mint Keyboardio Model 100 on a local marketplace for 150 Euro with the octo feet. It's over 500 Euro after VAT and shipping when you import it to The Netherlands.)