The Rock is a very simple straight forward tent. Set up's and tear down's are lighting fast thanks to the two pole and clip system, the third ploe being for the fly. The all mesh design is great for star gazing on clear nights, and allows for great ventilation on those nights when the rian fly is needed. The Rock is free standing, thus giving you more options on where you can set up. The Rock 22 has plenty of room for two people and it's a mansion if you are solo. The only draw back I see is the weight of 5.4 pounds, not an issue if you are car camping or using it for a base camp. If you are going on a multi-day trek I wouldn't recommend the Rock.
All in all a great tent