I should be more detailed about my review of the Speedhouse SL1
used it on a hike from the Portal to Sawmill Pass trailhead in fall 2010, I think.
The tent has no vents other than the front door. when you open the top zipper part of the door and the top of the door on the fly to let the warm air escape, you are open to rain falling straight in your face. The space in the vestibule is barely enough for two boots and a water bottle, while in the tent you can stuff some clothes and items like camera and maps next to your head, while in the bottom of the tent, the floor wraps up so fast, your sleeping bag will always touch the sidwalls.
Sleeping at Trail Camp the first night out, it was so cold, I had all zippers shut. By 3am I woke up with my down bag solidly wet on my chest from my breath, and ice crust on the outside. Froze through the rest of the night. In the following nights I tried to keep the door open and use the whole thing more like a tarp but it was raining twice at night, so that meant shutting the doors and getting steamed again. Without any decent cross ventilation across the top of the tent, it just is bound to get wet in there unless you have weather that allows you to sleep without a tent anyway. The copper spur design has two vents at the top of the fly for cross ventilation. Works great on the large UL3, so it should be even better for a single user UL1.
personally, for summer solo trips, I think I'd be looking at a tarp tent with netting. for any other season I prefer much more robust tents than any 3-season lightweight offering these days.
Speedhouse SL1 - looking out the only vent at Trail Camp on a 20F degree morning
my hiking buddy Mousie marking he spot where rain hits you when you leave the top of the fly door open for ventilation