Shawn and Marlon are probably the best pairing of Wayans possible, from their Scary Movie movies to this show.
Sadly even two of the funniest actors out there cant make a stupid script watchable. This show is completely hit or miss. Some episodes are incredibly funny while others just have you wondering where the remote is. Even if its not consistently funny I still love this show. The slow paced script peppered with hilarious jokes is entertaining, but sometimes just not worth it.
Most of the later shows however fix this problem as they bring in an even funnier supporting cast and much better writing. It becomes consistently funnier without giving up its crude humor. If you can watch an episode from one of the later seasons you'll probably enjoy the show more.