Fwiw, if you're debating between the Rarian Marine Elegance and the Raritan QC....there's so little price difference between the Raritan SeaEra QC (fresh water version) and the Marine Elegance (that is, if you know where to shop for the Elegance) that I'd go with the Elegance.
But unless you've decided that the next toilet HAS to provide the "push button convenience" of an electric toilet, you might want to check out the Raritan Fresh Head
Raritan FRESH_HEAD Promo Sheet It's the ONLY manual toilet designed to use onboard pressurized fresh water. Available as both the complete toilet or a "conversion" that allows you to keep your existing bowl, seat and lid. You'll prob'ly want to check out the Installation, Operation and Maintenance Instructions (aka "owners manual") too.
Raritan Fresh Head owners manual You'll want to shop for the best price, but I'm pretty sure Dave at the sbo.com store can match or even beat any other price.
--Peggie