I’ve been using the Logitech Wireless Wave Combo Mk550 for a couple of months, and I really like it for AutoCAD and Revit work.
The MK550 is very comfortable, with its “wave” shape and its padded front apron. It’s Unifying compatible, which means it works with the Logitech Unifying USB transmitter, which can mate with up to six (6) Logitech devices on one tiny transmitter.
The keyboard has two essential attributes for AutoCAD work — large, easy-to-find Escape and Delete keys. Plus it has a convenient rocker switch to zoom the currently active window larger and smaller.
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