I have this tent and have used it on 3 trips so far.
It is a great, lightweight option if you want a double wall tent (which I did). It does feels very well made.
On one of the trips I have used it to sleep 2 people and it's fine if the only time you want to spend in the tent is for sleeping- probably not the right tent to wait out a day-long storm, due to the low head height and small vestibule.
Two possible problems with this style of tent:
1) is the large front door- if it's raining and you want to enter or exit the tent there is no barrier to stop the rain from entering the tent, generally straight onto the head of your sleeping bag. For my use, I don't see this as a major issue as long as you are aware of it
2) the tent inner must be pitched before the fly so it is a little trickier to put it up when it's raining (again, not an issue for me as most of my hiking is on the Bibbulmun track where there are camping huts to sleep or wait out the rain)
The Fabric walls are great and having that extra barrier is fantastic as the fly doesn't reach all the way to the ground- so you get ventilation while eliminating the cold breeze. Other tents I considered before deciding on the Fly Creek UL2 were the MSR Carbon Reflex 2 or the TarpTent Scarp 2 (I actually had an order in for this but had to cancel as it was taking ages to get stock, I may still get one).
If you are a member on BPL (if you're not, you should be, it's worth it!) there is a great review here from Ray Estrella who has many, many tents to choose from:
http://www.backpackinglight.com/cgi-bin ... eview.htmlI hope this helps as I found it hard to get info before I purchased mine!
Cheers,
Will