We also have the AC Rainman. Bought it used from a transatlantic sailor. 35+ gph and very easy to use, but like Dougcole, we find it noisy. This year will use our sea water wash down hose to supply it while underway rather than at anchor.
Chris Burton - the East Coast distributor is very responsive.
They're both expensive for the output. For the price of the cheapest unit you can build a 40+gph system with common parts.
If you don't want to do it yourself, https://www.cruiserowaterandpower.com/ would be a better choice.
Rich sold me my component based watermaker years ago.
I use it every day. 365 days a year for over 5 years now.
I can tell you that as a stayaboard I would not want to deal with a portable.