This was an excellent tour and I would recommend it to anyone. To start, Debbie was very accommodating and responsive when booking and getting everything planned. She got us all prepared and answered the many questions we had. Ron, who we highly recommend, picked us up bright and early - we wanted to see as much wildlife as possible so Yellowstone Dreamin' was flexible on the start time since it was a private tour. Ron knew his facts on the animals, history, and general interesting Yellowstone tidbits. The car was clean and comfortable and Ron did a great job on the roads.
Once in the park he knew all the cool places and spots to find osprey nests, bald eagle nests, and wolf dens. You're not guaranteed to see any animals because they're wild animals (ok you'll probably see elk and bison), but we were able to see a grizzly, many wolfs and pups, ruddy ducks and more. We wouldn't have seen as much if Ron didn't know where to stop and he also brought a mega spotting scope which made all the difference (it made others not on the tour jealous).
As a full vegetarian family, the food was surprisingly really good and the portions were very large. We were happily surprised that both the quality and quantity exceeded our expectations, even being vegetarian.
Not only did we have a great day with Ron, but he gave us places to look in the following days we were in the park and all of his tips paid off as we saw some cool things based on the places he said to go.
Totally great experience, definitely worth it. I would recommend doing it early in your trip so that you can get a feel for the park and the wildlife hotspots with Ron driving.