I haven’t used it with two people, but it is designed and wide enough for two. If you pitch your tarp high enough, you can sit up under  it. The net may touch the top of your head, but the material is so light, it shouldn’t bother you.
Its got a catenary cut, so it’s tallest at the head end, lower at the foot, and lowest in the middle. I’ve only used it with an A-frame pitch, which is what it’s designed for, but you could probably improvise with other pitches, as well.
It’s 7’3” long, so my 8.5” tarp doesn’t leave a lot of overhang. I did use it in at least one heavy rain storm, but the floored version would be better if you expect rain.
Overall, I like it, and the fact that I was able to get it quickly was a plus (I think I ordered it from Amazon). Light, takes up very little room, and combined with a tarp and a ground cloth, it makes a nice shelter and keeps the bugs out.