In reply to mriwbrown: On the solo, if you are careful to pitch it correctly (not too tight!) it is really sturdy. Held out a "normal" nights rain without a problem.
The only real disadvantage is that there is no hope of sitting up in it. So, you really need to get changed before entering the tent, and you can only sleep in it (unlikely to comfortably cook/eat/read). On the other side of that coin you could see it as an advantage as it makes it a bit more stable in the wind.
All in all a great 2 season tent.