I'm jumpin' over from the Winne forum just to tell you that I bought and installed one on my Brave. It's still portable (not hard wired), and I take it when I might need it.
Mine is the RV Sanicon (about $200); I bought it from RV Upgrades, our sponsor on irv2. I bought it so that I can get a good clean out at home, even though my septic tank is 65 feet away and about 2 feet higher.
The macerator will pull a good 15 -20 amps so you need appropriate wiring. It's a tad noisy, but that's not totally unexpected. It does exactly what they say: pumps out your tanks, even to a remote location like mine. It takes a bit longer, I'd 50% more time, because the output is a 3/4" hose running at about 15 pounds of pressure (pretty good flow!!), instead of the large 3" dia. sewer hose we're all used to using. Also it will literally cause a suction at the end of draining your tank and lots of TP & small debris actually get sucked out of the black tank. I think, in conjunction with using my built-in black tank sprayer, my black tank gets a cleaner, more thorough dump with the RV Sanicon than with the 'ol 3" hose trick.
Do a search on "macerator" like I did and you'll find lotsa info and good advice. I selected the RV Sanicon because of what I read here on the forum.