Season 4 turned out pretty well...
I was skeptical about the two-person-team format, but by the end I got pretty involved with the tribulations of the remaining teams. I hope they go back to the "alone" format though. We get more than enough of these types of shows hinging on social interaction, and I always get a kick out of seeing how the contestants handle the isolation. All in all, a wishy-washy yes and no.
(I hope Pete and Sam get their crabbing boat, they certainly earned it!)