I have the Big agnes fly creek 1
less than 2 pounds.
4 panniers fit in the vestibule.
Takes a couple of trips to get over the Claustrophobia, but you do get over it.
The small stakes it comes with, are not good in the sand, but otherwise hold.
I use a thin sheet of plastic as a ground cloth.
Keeps me dry if it rains for a few days.
1 person fly creek under 2 pouns, 2 person over 3 pouns, you decide.