I'll echo the same sentiment. Cool idea, but for us anyway, hardly ever used.
If you do get one, make sure you run it periodically. Unless you want to see the nasty cr@p that comes out of it after the water has sat in the jet/hoses for a year!
Also install adequate access to the pump/plmbg. Nothing like having to tear apart your tub surround or cut a hole in the ceiling below to fix it.
'06 X2 MCX
"I understand why some people may not want to do this the way I have recommended but I can't understand the death grip some people have on a toilet plunger with a hose fitting." -JimN