Hey - well it's been an adventure. The Phyn has some pretty non-standard connectors to tie into the water line, which required the plumber to try and obtain them from their supplier. Phyn does a pretty poor job of explaining what's needed, so it went back and forth for a couple weeks, with calls and emails in to Phyn. Finally, the plumber said, let's just do the Moen Flo, we install all them all the time, and we have the parts. So I did that and the Flo has been "fine" apart from the power supply just dying for no good reason. app is fine, integration with my home automation is fine. It has twice now decided my daughter's bath was a catastrophic leak and shut off the water :).
The Phyn - I finally did get it installed in our airbnb about a month ago, and guess what? It found a slow leak in a toilet. Got that fixed. I don't know one way or the other whether Moen would've found it too, but happy that the Phyn did.