Fairfox: Monkey Island 2. Good game, good graphics and music, funny text, but frustrating and arbitrary puzzles at times.
I totally agree...I played it in the late 1990s and didn't enjoy it that much....then last year I bought it on Gog, and still didn't really enjoy it that much. Tbh I find the puzzles rather horrible, and the story is too weird and meta for me...I liked Monkey 1 much better.
Other games I found to be overrated:
1.) Fallout 2: a lot of people claim it's the best rpg ever...I found the combat tedious, the story was barely existent, and there was too much fourth-wall breaking, at times really tasteless and juvenile nonsense...failed utterly imo in creating a believable post-apocalyptic world. I later played Fallout 1, and liked that one much better (though it's also overrated).
2.) Deux Ex: played it a few months ago...actually a good game. But certainly not "best game evah" as many claim...AI is bad, gameplay eventually gets repetitive, story is ridiculous and many elements (like those ridiculous French accents in Paris, or Chinese soldiers speaking broad American English) just silly and atmosphere-killing.
3.) Command and Conquer Tiberian Sun: more a kind or pre-release hype...back in 1999 Westwood made all kind of promises that made their upcoming C&C game look like it would revolutionize RTS gaming. In the end it turned out to be a very mediocre, boring game.
Someone else mentioned System Shock 2...played that one a few months ago for the first time, and it might be somewhat overrated....but it's a unique experience, don't know of anything comparable. I'm not sure I actually enjoyed the game that much (the constant tension was a bit too much stress for my taste), but in its way it is deservedly a classic I'd say.