Well I bit the bullet and bought one of these for $355 on eBay.
Based on my initial setup in the yard and two 1 night trips, I find the BPL review to be accurate.
As BPL recommends, access to the rear vestibule would be improved with an L shaped zipper. As it is now, you're passing stuff through a slit that spreads to maybe 16" at the widest point. I haven't measured the max width, but it sure looks tough to pass a medium sized pack through here which is too bad. It would also be very awkward to cook in here. Overall, the second vestibule seems pretty much useless except for tossing my packs under here from outside the fly. You could pass footwear through the tent into this area.
Regarding the 40" width, my CR2 measures around 42" in the middle, but it still certainly isn't close to 50". My tent is 46-47" wide at the corners.
Essentially what's going on here is that the top strut pulls the floor of the tent up in the center when the tent is empty. The tent is a very taut unit and the carbon fibre top strut (cross pole) is quite stiff, so when you don't have anything holding down the floor the edges are lifted up in the center. A stakeout point in the center of the tent would add a few inches to the tents midsection width.
The lack of peg out spots really isn't a problem though....the floor is adequately wide for two averaged sized people. I would share this tent with people who aren't my spouse.
Overall, the tent has a very high quality feel to it. I really like the mesh storage pockets. They are very well placed. In the pitch dark, you can just reach out and they are exactly where you imagine they'd be. This is very handy when you need to find your headlamp so you can relieve yourself.