Since you're a fan of Telltale's other adventure games, you're probably aware (and apparently tolerant, since you like them) of the inconsistent quality of puzzles found in their games. The puzzles are, overall, pretty simple, but where ToMI shines is the story. If you thought that it would be nice for there to be a Monkey Island game which explored the potential of the setting and characters, then you'll probably like ToMI quite a bit. The game doesn't really hit its stride until chapter 3, though, so if the first two chapters don't interest you, keep pushing forward. Chapters 4 and 5 are especially a treat, story-wise. Try to not get yourself spoiled before playing.
It's a bit of a shame that, technologically speaking, the game is held back as much as it is, but that's mostly due to them having to work around the absolutely absurdly tiny size limit for digital Wii games. If it wasn't for that, there might have been less copy-pasting with NPC models and what-not.