User Review: Sierra Designs Sirius 3
Price Paid: $130
The perfect lightweight 3-person tent if it had another 6 inches or more in length?
At 7 ft length, you'd have to be 5'6" or so to fit lengthwise without bumping your sleeping bag against the single-wall. From my experience, water will leach right through a tent wall if you rub against it. Probably fine in dry climates, for short backpackers.
I am probably going to return mine for this reason.