Just finished the install on our toto S7A washlet and wall hung toilet in our master reno. I can’t say much in terms of experience with it, or any drawbacks. I just really like the idea of it… it‘s sleak, its modern, easy to clean. I actually dont mind the actuator plate and you can get all sorts of designs and colors to match your fixtures or style. The bowl we used conceals all the plumbing. The plug in is exposed (its a bidet) but its on the side of the toilet that is not noticeable when looking at it. Its pretty slick tbh.

We used a Geberit tank system. I suggest building a 2x6 wall and getting the geberit frame for a 2x6 wall if you were to get Geberit.

The only real issue I have is that I dont have tile behind it. Its just drywall. The drywall seems a bit out of plumb (framing defintiely isnt… checked about 6 times) so to get the toilet plumb there is a little bit of a gap at the top where the toilet meets the wall. This is exacerbated because i installed a sound dampener behind it (optional add on) so the gap between the bowl and wall is about 3/16”. I just shimmed it with some composite shims so the toilet is plumb and level and doesnt budge now, then just siliconed the gap. Might look bad if the silicone gets dirty. Looks good otherwise. I figure if i ever wanted to i could take the drywall down, put up some cement board and tile and wouldnt have that issue.

Btw, I framed the bathroom and the geberit frame. it was a lretty simple install. From what I know the plumber didnt have any major issues, but would have been very tight if it wasnt a 2x6 wall.

Scott, that’s all great to know. Will share with our contractor. We have been looking at options and are leaning towards one of the Toto models because they seem the sleekest and most space-saving (trying to maximize the space in front of the toilet for more shower space.