Well, I'll say this. I think that the best Tyrion chapters in the entire book were the ones on the Shy Maid. I loved the descriptions of the various ruins along the river, and the little bits of history. That part of the journey definitely has a lot of interest.
Unfortunately all that goes downhill once he gets captured by Jorah. The rest of his "journey" is relatively cliched, and very boring. He's forced to play nice with a dwarf girl he feels sorry for, and his interaction with Jorah is limited to getting slapped and punched. It's not entertaining to read, nor is there anything interesting or informative during this journey. Most of it is the same crap with him feeling sorry for Penny, and feeling sorry for himself for getting into this sorry situation. By the end of the novel, he doesn't even get to Dany. Instead he's still stuck with boring characters and in a stupid situation.
So yeah, I feel that the Tyrion storyline is a bit of a bust in Dance, and what started out in an interesting way went into the garbage once he hooked up with Jorah. Did anyone actually enjoy Tyrion's storyline with Penny? Seriously.