I totally hear you about the sewn in floor, Stephen. Most times it is superior.
For sure, if this wasn't so light, it wouldn't be worth it. But with a light ground sheet, you're looking at maybe 5 ounces tops, and still have a bit of room inside. And price is relatively cheap.
I think where this might be useful are the times of the year when bugs aren't out in constant full force. In camp, you could hang out under your tarp on your ground sheet and keep the net stashed away. You'll have lots of room. As night fell, you could deploy the net to sleep bug-free.
But then again, I've never actually used a net like this, so I might be talking out my butt!
Oh, I do have a question for you though. How far is the peak from the head end? The website says its "asymmetrical" for better head room, but what does that look like in reality? Meaning, if you dropped a plumb line from the peak to the floor, and measured from there up to the head end, how far away is that?
It also says the height is adjustable. Does that actually work?