The road is in good condition. It is driveable by a Prius. They also ran a brush mower all the way up the road very recently. The corridor is nicely cleared with all the attendant vegetative carnage 12 feet on either side of the road. Sight lines were good, too.
You can drive right into the activation zone where there is a nice, flat clearing with a fire pit in it. There is plenty of space to set up a 67 foot wire antenna.
There is cell service right until you get to the activation zone, at which point it barely works at all. Occasionally, you'll get one bar, but it's almost never enough to spot.
There is sort of VHF potential, but not much. I made 3 VHF contacts and they all reported rough copy.
HF is fine, no interference.
There is continuation of the Cinnamon trail from the clearing. Don't follow the trail, it descends the mountain.