Single wall construction. No fly. Doesn't look too bad but I'd be concerned about those tiny vestibules covering the door and the limited ventilation.
Nice to see it come with a compression sack for storage though.
At that price it's hard to go wrong. If it's junk you're not out a lot of money. I've owned some pretty cheap tents in my day and it's hard to go wrong with most modern tents. One of the best tents I've slept in lately is a $35 2 man from Costco.
If the tent turns out to be good...then the question of why is this tent so cheap turns into a new question. Why are all the others so expensive?!