I bought a CVT Mount Shasta tent last year. While I love how comfortable it is and how fast it deploys. But the build quality is a little lacking in my opinion. Lots of loose threads. I had 2 seems come undo on the annex by 4 inches on the second trip out. The tent piping is always working out of the base. The instructions were not that great either.
To be fair I don't have any experience with any other RTT, thats just been my experience with my tent. Would I buy another one? Most likely. At the time I bought it, it had the most features for the price. But It would have been nice to see a few different makes side by side