get that OUT of my face posted:

In the case of Always Sunny, it helps that a lot of the time, some or all of the gang eats poo poo at the end of an episode. Also, they're all in hells of their own making (i.e. Frank living in squalor even though he could easily afford a better place to live, Dennis's oversized ego that blinds him to what others think of him). In every episode of Allen Gregory, everything bends to his will, and the show expects us to cheer for him. That's asking way too much from the audience.

It's not that the concept alone makes for a bad show, but there other factors that have to be in play. That's why Always Sunny has been on for 12 seasons and Allen Gregory was canceled after seven episodes.