Grim Fandango is one of the best third person puzzle games on this planet, period.
This game is just damn good. It is the best puzzle game that we have ever seen. The soundtrack is my type of music (Very Jazzy). The graphics have aged extremely well, and it's sometimes hard to believe it came from 1998.
The only thing wrong with this title is the problems with fast machines. You have to download CPU limiters to get past certain points, and sometimes they don't work too well. There are some other minor bugs that are irritating as well, such as running it in Hardware mode. Likely, if you are running a new chipset, you'll have to get into your dxdiag and disable Direct Draw and Direct 3d to play this game properly in software mode, which is a bummer.
I ended up not finishing this game due to these issues. I would be extremely quick to get back into this title once it gets revised for "straight-through" gameplay. Grim Fandango is in need of a proper, updated patch to fully enjoy. TRY not to read any walkthroughs, as some puzzles seem kinda far-fetched, but very well written once you look back on them. Try to use everything with everything is my best advice.
Grim Fandango is one of the best third person puzzle games on this planet, period. It just needs a revision to be truly enjoyable today.