I had the first for the Amiga and finished it back then, because you didn’t just spend so much money on a game and then not play it. However, I kept my hands off the sequels, so I guess my overall impression wasn’t that favourable. I really liked its graphics. however (and still do).
Not too long ago I’ve played the second part (from an earlier sale on GOG) and actually enjoyed it. Not sure I’ll ever get part 3; I feel I will not get warm with evil Malcom as the playable character.