AMAZING!!! We arrived an hour late (check how far you are in advance if you book this! Phoenix is big!) and we missed the tour but they offered us a UTV (4-seater) or ATV unguided tour instead, or that we could wait for next guided tour in 3 hours.
We took the unguided, got our face socks, goggle, bottles of water, signed a waiver, got a 7-minute instruction, and they sent us on our way and IT WAS SO FUN - However something to be aware of if you're risk averse, I spent the first 10 min driving repeating "I can't believe they just gave this to me!" - this is an advanced course with cliff edges, steep slopes, big drops, and plenty of bumps - all which add to the fun - but just something to be aware of - the waiver is there for a real reason lol. I am female and I was using 70% forearm strength to steer a lot of the time - it is ACTIVE steering and driving. Within 30 min I was comfortable and picked up more speed but again just something to know if planning something with small children or cautious friends.
I think it ended up being a blessing in disguise to do the unguided UTV tour - my companion was happy to be a passenger, it gave us more freedom to adventure, and I wonder if we would've been eating people's dust if we did the ATV group with 20 people - so maybe I'd recommend booking the unguided UTV or ATVs if you're reading this.
The staff is friendly and accommodating and deserve their 10-20% tips. Lots of parking. They also have a shooting range with handguns and machine guns if you want to make a day of it and go there after. The cacti and desert landscape was really beautiful.
I never write reviews like this but it really is 10 stars. I left feeling alive from the adventure adrenaline rush and there are few experiences like that for $99