I sleep with my girlfriend in one hammock several times a week. It isn't for everyone, but it also isn't uncomfortable for us.
We are in the minority for sure. If you've got the funds laying around, give the Clark Vertex a peek. I got to test one for a couple of months and it was a very impressive rig. Still on my wish list. When we sleep together in the woods, it is usually in a Trek Light double...but, no bug net.