We booked a 3.5 hour jeep tour and had Clint as a guide.
The tour route was really good, the main road surface that the jeep took wasn't really suitable for own vehicles (even though you can take them if not on a tour) so the jeep vehicle was def better suited and I would recommend you do this tour rather than take the trail road yourself.
The tour takes you off the main trail to parts that private cars can't access and we discovered some marvellous scenery and Clint had some lovely stories to tell.
We had enough time at each of the stops to look around, take pictures and just take in the vista which was stunning.
The only reason I'm giving this a 4 review rather than 5 is down to some of the time wasted at the start of the tour - we felt we were stood too long listening to quite strong religious themes (not necessarily related to native american culture/history which is what we really wanted to hear about) and it was almost like we were given an evangelical lecture - we spent the first half hour stood in a hogan listening to this and the same again at the first stop and a few of us got quite restless.
The tour then gathered pace and became a lot more enjoyable. Whilst Clint was a really lovely man, the religious discussion felt like we were in a church service and it added an hour to the tour. Whilst some may see this as a good thing, it's an hour of church service we personally could have done without, had it been about Native Amercians then it would have been more interesting but we felt it swayed foo far off topic.
I would recommend the company as everthing was very smooth, no issues meeting up at the hotel and being taken to the jeep and it was a good value for money.