I've never watched Deal or No Deal for more than a couple minutes because the concept just isn't that interesting to me (it's just statistics), especially if I'm not invested in the player. In this case, I was intrigued by the island competition aspect and enticed by Joe Manganiello and Boston Rob.
However, I ended up being pretty disappointed. Joe's charisma was dialed way down by the structure, and his lines seemed overly scripted. I enjoyed seeing Rob compete, but it wasn't enough to make up for many of the the other contestants, who schemed, back-stabbed and lied for no discernible reason, certainly not for gameplay. Without the excuse of starvation and exhaustion, I felt embarrassed for these people displaying such unearned personal vitriol for other players, and it ended up leaving a bad taste in my mouth.
It was interesting seeing the compassionate side of Rob unable to hold back the bloodthirst of first-time players, the personal offers spiced things up sometimes, and I didn't so much mind the final player, but I doubt I'll be watching future seasons.