I have taken this tent backpacking to the Washington coast (Olympic National Park, 7 miles round trip) and canoe camping on Leigh Lake at Grand Teton National Park with my wife and two kids (3 and 5). It's a manageable weight, it's snug but with two doors and a small vestibule on each side, comfortable. We really do all fit inside... I'm 5'8", my wife is 5'6" and the kids are.... kids! It is not a four season tent but it has withstood a couple of rain storms and some 25 mile per hour winds (with rain) in the Tetons, and we all stayed dry warm & happy. If you have a small family and want to go backpacking, this tent needs to be on your short list.

I bought this tent on sale, and it's worked great. A little snug for three people, but not bad to save weight in the backcountry. Very breathable and I haven't had any condensation problems with the rainfly on. Haven't had the chance to test it in the rain yet, but it seems pretty solid. Easy to setup. Only complaints: The zipper kept getting stuck on the flap, and the sacks (for the tent, poles and stakes) are a bit cheap. Buy a compressor stuff sack to get this tent down to a smaller size in your pack.

This is an all-around great tent. I've used it in sweltering AR summer nights and cold, wet, windy spring ones as well. This thing has stood the test. As long as you set it up facing the right way (air scooping the wind when hot & dry, and against the wind when cold & wet) you've got nothing to worry about. Its setup in stupid-easy and it's made of good materials.

Cons: Vestibule space is nil & of course the zipper gets caught.

P.S. And w/most tents, if you're mainly going w/2 people, then you should spring for the 3 man tent; so on & so forth.

We have backpacked with this tent for several years. There are few tents that can compete on weight in this category (it is weight competitive with many 2 person tents) and at this price point it is a no loss purchase. We also own a Mountain Hardwear Hammerhead 3 tent but even when winter backpacking in NC & VA we carry the Sirius 3 (4lb lighter) unless we are expecting large amounts of rain or snow.
One note: since the weight savings comes by going to a 2/3 size fly it is very very important you consider wind direction when setting the tent up (yes, we learned they hard way on a late spring trip in the mountains of Virginia when the temps dropped below freezing, winds hit 30mpg and the rain fly channeled the wind onto our 32deg bags; if we had set it up with the fly to the wind it wouldn't have been so cold!)