Beatles is also a great multi-player game. Was playing with 3 heavy hitters at my home and everyone loved it. 4 player game took about 15 minutes. OTOH, IMDN 4 player game took nearly 1 hour!
The vibe I got was Beatles was a very pleasant surprise and Munsters was "meh". Those were the 2 new kids on the block...everyone already liked IMDN, but acknowledged it's not the best 4 player game...ball times are just too long.