
The appeal is that I usually keep my pack in the tent anyways and don't care about vestibules, I get annoyed when it rains in a tent when going in or out, I like to be able to control ventilation while in my sleeping bag, and the weight. The intent was to replace the couple's tent, but it's only a couple ounces heavier than my solo (2-person), so it will probably serve as a very luxurious solo tent, too--at least until I get a lighter 2-person.
I've only set it up, but like it a lot already. Weight is dead on the specs: 4lb 11oz all packed up, 4lb 3oz just tent and poles. 7 mins to set up the first time, staked out, without reading instructions, and dealing with packaging blowing across the yard. It was gusty, but it firmed up nicely once everything was clipped, and seemed a lot more stable than it might appear from it's shape. I will guy it out if any chance of any significant wind--but always have. The line-locs on the stake out points are great and make adjusting easy. Inside feels huge, even though the floor space is a fairly standard 3-person size--headroom and full height vertical walls make difference. Would be no problem with 4 people playing cards on a rainy day.
The jury is out on the attached fly: it certainly makes it quick and simple to set up. My questions are how will it hold up and how difficult is it to repair (hopefully won't need to find out). And if there is any condensation when you pack up, it's going to be on the inside and at least dampen the tent itself--you obviously can't fold the fly into itself to contain the moisture. We will see if that's an issue or not. Time will tell.