I don't understand the curved keyboard wells as present on the Glove80 and Kinesis Advantage keyboards. For most keys on a flat keyboard I type not by bending the finger joints and then punching the keys with the tips of my fingers by straightening my fingers. Instead, I press the keys by largely swinging the whole finger up and down and typing with the pads on the distal phalanx of the fingers.

This is hard to explain but my experience with my Kinesis Advantage is that the keys above the home row and especially the function keys (really just function buttons) are too high and are oriented with the faces of these keys too angled towards my hands (i.e. the normal vector from the top of the keycaps are angled at perhaps 45 degrees from vertical). So on an "ordinary" keyboard, like a laptop keyboard, the surface of the keycaps are roughly parallel to the surface of the laptop keyboard. On such an ordinary keyboard it is quite easy to press the number keys and function keys without a lot of finger flexing, while on the Kinesis Advantage I feel like I am curling my fingers then lifting my whole hand and then straightening my fingers to kind of punch the keys like one would press a button mounted on a wall. (Does this elaborate explanation even make sense or am I just being picky?)

I greatly prefer typing on the Kinesis Gaming Keyboard. These feel better than using welled keyboards to me.