Installation was fast and easy. Debbie will tell you that it took me a few hours. But she's not factoring in a lunch break, a yelling at the kids break and a trip to the hardware store. I'd say actual work time was about an hour maybe an hour and a half - tops.
Deb and Julia have already taken the Toto for a spin but as of this posting, there has been no true test of whether or not this thing will allow me to put away my plunger for good.
I'm guessing you don't need an update.