We had a screen room that attached to the awning of the pop-up we had. It was great, once it was up, but a pain to take down. Had to watch the weather forecast so as not to have to remove it during a rainstorm when we were leaving.
With the TT, and now the BH, we're on our fourth screen tent. The first, a Coleman, lasted for about 3 years. The second, another Coleman decided to rip at a seam in the roof it's first season. The third, a Eureka, made it about a month before a windstorm tore it apart. We now have a $40 WalMart cheapie that seems to be better than any of the other ones we've had. At least for the price, I could lose three or four of them and still be ahead of the cost of the other ones.