On a rainy day, which is rare in a California camping season, we can seat 5 adults around the table in our 2720. Two on each side and I sit in a camping chair on the end. We use the edge of the front bed to store some of the serving dishes.
It is cozy, but does work.
Normally we eat outside. If I wanted to eat inside I would have stayed home.
With the leaf in, I can barely squeeze in between the fridge and the table, but my son(26) his wife (27) and our daughter(28) have no problems.
On my list of things to do is to buy another leaf. The table opens up farther than is necessary for the current leaf. If I rip the new leaf into 1/3 and 2/3, then a leaf and a third will fit, but no one would be able to squeeze between the fridge and the table anymore. If it is just the two of us, then I would use the 2/3 leaf. A full leaf is to big for us to squeeze behind and no leaf is a bit small.