I used this Supercharger and I'm so glad it is open! Sneaky, I didn't know anything at all about this until last night when we were on our way up to Flagstaff (first time 'home' from our 'other place' in Phoenix since mid-December). We charged for a bit at the I-17 and 101 SC and saw this on the map on TezLab, I was excited to try it out. Was charging at 125kW for a few moments.
The biggest benefit is that we no longer have to stop at 17/101 and make the terribly circuitous route to get into that dang center, and deal with those slow SCs (not as slow as Biltmore, ugh) and slowly get back up to 17 going north/south. I believe not dealing with this out-of-the-way drive and the faster SCs will save us about 20 minutes each way... if not close to 30 minutes. That's a lot for what should be a 2 hour drive.
My take: for me this is pretty fantastic... coming down from Flagstaff I can start out with my full-ish charge from home where electricity is 3 cents per kWh (November-April, 10a-3p thanks APS that's cheaper than any solar system I could install!) - then I can get to New River and charge and have enough range until I need to return to Flagstaff! Going up to Flagstaff, I can stop here too and have a bit more range when I get home. Driving a MX P100DL+ it didn't used to be possible to make the 145 mile drive without stopping in Cordes with my 22"s... I switched to the 20"s because I got about 40 miles more of range on the PHX-FLG drive with the 20"s.
It’s getting close to being operational. The transformer was humming as though it had power to it and available. 
