I was introduced to Might and Magic through the Sega Genesis M&M (equivalent to PC M&M2). I also played it on PC and C64 back then. M&M1 and M&M 2 were huge award winning successes that really began to establish the framework of modern day RPGs.
It has tons to do and is one of those old-style actually-hard games. In fact, I only finally beat it last year after playing nearly 10 years (played it several times, of course). It's not "good" like today's stuff. But it's just plain ol' fun for me. I doubt it would fit many people's taste.
But M&M6 is just simply an amazing game. If you've play Heroes of Might and Magic 2, 3 or 4, then you'll want to check this game out b/c it fills you in on a lot of the story going on in those games. It's a unique story with some good and novel game play.
These are nowhere near the best RPGs ever. But they are great fantasy/sci-fi games and instrumental in defining the types of games we have now.