One would expect that HBO would want to put their best foot forward in the premiere episode in order to hook people. Well, if Episode 1 was as good as they could get, they've got a real problem.
First of all, the four comedians are really only two comedians: Dane Cook and Gary Gulman. Bobby Kelly and Jay Davis are evidently there just to make the other two look good by comparison. Not that you'll get a lot of looking at their stand-up abilities since the show isn't about that. Actual stand-up makes up mere moments in the half hour. Unfortunately. What you get is a reality show of four jerks on a bus together.
There are evidently 9 episodes, so HBO probably won't cancel it. But if Jay Davis isn't tied to the back of the bus and dragged through, say, Colorado in the first few minutes of Episode 2, I can't see much reason to continue watching.