I really enjoyed the first Gobliiins game, but this one was so difficult, annoying and frustrating that I just couldn't finish it (even WITH the walkthrough I got stuck at that musician place...couldn't figure out how to talk to the guitarist...). I remember playing Goblins 3 a while back and I enjoyed it (though I didn't get far because the sound was all garbled up and there were no subtitles)...
This one just isn't worth it to me.
I would, however, like to know the story of the game. I played the 3rd Goblins and it seems like it crosses over (moreso than the first game).