I use the one-person REI Quarter Dome 1 that I purchased three years ago for backpacking and bike touring and love it. I am 5'8" and find it very roomy with plenty of room to store my pack and boots under the vestibule. I recently went car camping with an old two-person Kelty Quartz and wished I had taken my Quarter Dome instead. The Quarter Dome is a lot easier to get in and out of than the Quartz was. The only down side to the Quarter Dome is that it is not a four season tent while the Quartz is. I agree with those who would opt for the smaller tent at less weight, all other things being equal. Maybe you should just make sure what ever tent you buy has a "Q" in the name.
one or more gifts or other benefits from the co-op.