(THIS ENTIRE POST IS A SPOILER)
Sorry for spoiling the fun, but I just wanted to point out the reasons that made me like this episode a bit less than the rest:
1) I didn't like being able to USE max as a hint system. This is because (a) I think it's weird to be able to ask Max "Can you give me a hint?" - makes you feel like you're playing a game. It made me feel like Max wasn't really another character but rather just an object meant to give you hints (by the way, this also disturbed me in CSI). (b) I'm a very weak person, and when there's a hint system around, I wound up using it and hating myself afterwards.
Also, I liked the fact that Max had different dialog options based on the location, and it's too bad he stopped having those.
2) I think some of the puzzles this time were a bit unfair (i.e, I was stuck a few times, and when I accidently solved the puzzle I didn't bang my head and said - how didn't I think of that!?)
I) the antenna has been there forever and there was no reason to suspect we could take it this time.
II) There was nothing that hinted that we should make Leonard throw up. When Sam used the throwing up thingy on most characters, he just said "I don't want to see him throw up", and there was just no reason to suspect Leonard had that deed inside him (unless I missed something)
3) Just a tiny grump - in this episode, for some reason, I got kinda annoyed with getting stuck into Max while walking (the wheeeee thing). Last episodes it was cute, but this time for some reason Max just kept getting in my way all the time.
Just wanted to comment that despite those three things, the episode was still pretty good, and the fact that it's my least favorite just goes to show how great this season was :D