Yes, I rode the route on Saturday, and it was fabulous! The was a little bit of construction-related rerouting in Draper, based on a revised map Ken sent out, and I crossed from JRPT to Liberty Park on 900 S instead of 1700 S (I feel safer on that street, although it added a little distance). Also, I started and finished from my house, which added about a mile on each end. There was some flooding on the JRPT, although one was just an inch or two, so I rode through it just, but another was at least 16" deep and I rode through that, too, which wasn't very smart. (My generator hub, bottom bracket, chain, and electronic derailleur were all completely submerged, as well as my feet and legs about half way up the shins. I had to pull water weeds out of my derailleur, but otherwise everything seemed to have survived.) That was obviously a problem due to the rain that day and not to the route itself.
It's a wonderful route. When the construction gets finished, it will be even better!