This was a great trip, and I would recommend it.
The hotels were all fine, the one night camping less so - very cold and the set-up was VERY basic (a kilometer away from a luxury resort!) - but the night sky in the desert was amazing.
The trip notes are not totally accurate/informative though - there is a lot more travelling than they suggest and a lot of it is in 4-wheel drive vehicles over rough ground. If you don't like heights, beware!
Be prepared for squat toilets in quite a lot of places :-/
All in all it was a good trip, well managed and very interesting.