This game is just great fun to play. Thanks to the humour and the very particular graphics style, it has aged quite well. Additionally, it has some great fan mods available, which allow you to change everything from the look and feel to actual game mechanics (similar to Jagged Alliance 2, for instance).
The last time around, I had spent nearly two weeks tweaking it just the right way prior to playing, and it turned out to be one of my most rewarding gaming experiences.