I would look carefully at the plans - particularly how much headroom you get towards the ends. Ideally get in one and try sitting up and putting on or taking off a jumper.
There are
a bunch of video reviews on youtube and if you can't get in the tent and crawl around, watching someone else in the tent crawling around is the next best thing.
Mountain Hardwear do decent gear. This tent isn't particularly light or particuarly cheap (unless you can find it discounted or on sale).
The extra door is, I guess, potentially useful if the other zip fails, but otherwise it seems like a bit of a gimmick - although it would be useful if you are somewhere that's very hot and sunny and you didn't manage to get a pitch in the shade or near a tree.
I don't know, it comes down to personal preference, and maybe it's because getting flies or mosquitoes in my tent is such a pain, but if I want to enjoy the fresh air and the panoramic views I get
out of the tent and sit in the fresh air and enjoy the uninterrupted panoramic views. The idea of sitting in my tent gazing out just seems a bit weird - but each to their own.