I took the upper road from 62 and yes, it was a bit rocky, but I read that the other way from Telluride was rutted out as well.  It's only 3mi of true 4x4 road to get up to the bluff. I was in a Tacoma TRD Sport 4x4 and pulling a 13' off road trailer. Nothing too crazy but caution if it has been raining.

If you stay at the coordinates it has an amazing view. A thunderstorm did roll in over night with 50mph winds so that wasn't much fun. I left the next morning incase the dirt roads got too muddy.

I saw multiple people coming from both ways with 4x4 vehicles so it can't be too bad.  AT&T service was good