Inevitable comparisons to "Motorcycle Diaries". Yes, there is a difficult trek through Central and South America. But that's pretty much where the similarities end.
The Motorcycle Diaries succeeded because Che is a compelling character, not a fresh-out- of-high-school kid with a vindictive sense of humor. There is no self-discovery in this film; no greater themes (populism, for example, in MD).
The main character in this film simply realizes he likes running away from his seemingly-cool family and being a man-child with no responsibilities. He's the embodiment of every guy in a midlife crisis who still wants to do "something really cool" with his life, to get away from it all, with a threesome in a Nicaraguan hotel thrown in for good measure.
I will say that I laughed at certain points in this movie. The supporting characters are much more entertaining (not to say that Masterson was bad in the role; it's just not a very good role). But halfway through, when I started groaning and rolling my eyes more than laughing, it became less and less worth standing in line at the Philly Film Festival for.