Bought and installed this just a couple of days back and it is working nicely. I have added the Hot/Cold mix valve also so this is quite neat.
BTW - I do have a Toto washlet installed in another bathroom! Except for the warmed seat I think the Hand Held Bidet is quite perfect.

One thing I would have liked is a back flow preventer on the Hot/Cold Mixer side - if one forgets to close this valve, cold water from the toilet supply line ends up in the hot water sink line. As the sprayer also has a on/off lever it is easy to forget to close the Hot/Cold valve!