I've had one for about a year and I like it. It's the only RTT that I have had and I have only looked at a couple other, but not to close, so nothing to compare it to. I would say it would be fine for 2 people, I've only used it by myself. The mattress is ok, but I use a thin air mattress on top of it, would makes it mote comfortable. The build quality is pretty good, I haven't come across anything that I've seen that should have been done differently.
One of the nights over the summer, it poured all night long. I felt a couple of drops through the rain fly, but was impressed with the ventilation. The rain fly sits about 3-4" above the tent. The tent has a mesh panel at the top, so with the other panels closed, it still breaths well.