After receiving endless (and excessive) amounts of indirect hate over Escape and its flaws, he and Mark Darin came up with an intriguing and excellent Monkey Island story. I will admit my initial fear was "...uh oh, Mike Stemmle wrote this story - will it make the same mistakes as Escape?"
I didn't have to worry. The reinvention of LeChuck was brilliant and saved the character. Morgan Le Flay became really interesting as a love interest for Guybrush. They used Murray in a non-forced way. There's not a whole lot of bad things to say about the series.
I think the third episode is where things really hit its stride. If the latter two episodes end up in a satisfactory way this may be my favorite Monkey Island game. And in a way it's kind of cool to see the whole human subplot level of it all, to see the creator of the fourth game get his very improbable and unlikely chance to make a beloved sequel ten years later.
(Obviously with lots of help from a talented staff and everything, but yeah.)