They are big, and they eat up a lot of desktop if you don't have a separate keyboard tray or L-return on your desk. These are all full-size keyboards (I use the number pad), and the ones without strictly rectangular keyfield layouts are larger yet. Just to mention, the slightly curved Microsoft Comfort Keyboard 5000 is a easy-to-use quasi-ergonomic keyboard that utilizes a curved unified key field as opposed to the divided key field of the new Surface ergonomic keyboard.
I'm rebuilding my desktop environment in another month, so I will put it back in use at that time and just use it until I get comfortable with it. I like the key travel of the ergo unit, which is certainly attractive, but I need to retrain some forefinger movements to use it accurately at any great speed. I like the ergo keyboard, which UPS delivered on release day last week, but for the moment I have gone back to using a Microsoft 2000 keyboard, a basic wireless unit that has been good enough.
For those few who may be wondering, the Surface ergo keyboard is also non-backlit - but the spec sheet never said anything different, so there was less chance of uncertainty.
