I took this tent on a 2 week Mountain biking road trip. While in Moab, we got some very very long heavy rain and I was able to put this little guy to the test.
Having to set up a tent in the rain is always something to consider and with the extra stakes required to pull the corners out to make use of the full interior, it took longer than I wanted. But it was for the most part easy to set up. Once set up, it was pretty solid and handled the winds very well and kept the water out for the most part.
The problem came when having to get in or out of the tent. When you open the rain fly to get out of the tent, all of the water that was on top of the fly, runs straight down and in to the tent, on to your sleeping bag or gear!! This was a HUUUUGE disappointment!!! Having to get up in the middle of the night while its pouring to go take a leak is bad enough, but to add on to that water coming pouring off of the fly and in to the tent!! That was too much of a design flaw for me. You can see in a lot of the pictures, and even better in person, but the peak of the opening for the rain fly hangs over the tent body itself, and since the majority of the tent is mesh, there is nothing to stop water from running off of the fly in to the tent, while the vestibule door is open.
I ended up returning this and swapping it out for the Big Agnes Copper Spur UL2. At only 10 ounces heavier (which in the ultra light world might be a lot), and marginally larger when packed, this is the tent for me! I will take the extra ounces over getting wet, cramped, and other design issues I wasn't thrilled with. The copper spur has double vestibules and a pole across the top that creates an overhang out past the interior of the tent, making rain run off from the fly in to the ten impossible. Also, the fast fly set up for the Copper spur is so much more useful.
I think this tent is great and could be considered a 1 man. I never did have two people in it, but it would definitely be tight to put two people in there. Another reason I like the Copper Spur better.