Jyprez:
Be careful with ultrasonic cleaners. They can easily pit and damage surfaces unless matched with the materials being cleaned. When I worked for AMAT (a semiconductor equipment manufacturer) some years back we tested ultrasonic cleaning systems on various metal and plastic parts. Settings that worked well for metal surfaces like aluminum ended up damaging plastics like Delrin and acrylic.
zero issues on this. no Lps get harmed.
To me the main benefit of this machine is not whether it's better than the 16.5 in effectiveness. I've heard it may be. The ability to push a button and return in five minutes to a finished record is where the money is IMO. I can clean 10 records in about two hours with my 16.5 regimen. I doubt there's a machine that get's the job done a lot better when I'm done. However, I spend a lot of time slaving over the 16.5. A machine that can free up time for me and still do the job well would be worth the money IMO, provided it's reliable. People say time is money. No, time is life and the more of it you can enjoy the better.
i owned the 16.5 for years and respect the heck out of that machine. i likely cleaned 4000 Lps with it. but the Audio Desk is infinitely easier and does a better job to boot.