The ADK would be more palatible if they'd used the Mitsumi switches from the M0487 keyboards. Some are tolerable as I mentioned earlier, others are as bad as a M7803. The DataDesk keyboards, while decent for typing were ugly as sin. An IBM model M looks nicer. My chemistry instructor in college had two IIsi machines set up with the DataDesk boards. Whenever I used one of them, I swapped the A9M0330 that was on the IIgs in the chem lab to it. Felt much better.