There are two of us camping as well, and we do find it roomy enough. What we've been finding is everyone that tours it says the exact same thing. "Wow. It's much bigger in here than it looks from outside."
I don't know much about the awning, other than a few folks on here have it and are happy with it. The price tag scared us off. We're using an EZ Up style awning/screen room, and we're pretty happy with it. Here's our rig, set up this past weekend at Algonac State Park.
I stake each leg of the "awning" at the base. I also use dog augers and ratchet straps to hold it down so that I can feel comfortable with it in the wind when sitting that close to the camper. The one corner by the door, which can't be secured to an auger because of the pad, is ratcheted to the frame around the step. We had some pretty good winds blowing this past weekend, and it never budged. With the breeze we didn't have any bugs, so we didn't put up the screen room.