I really liked the story line behind this game, and it had great music and interesting/challenging puzzles. The HOPs were a little annoying where I'd spend ages looking for something that when I checked the Big Fish walk through, wasn't actually there.
I've played most of the Vermillion Watch games, and really liked them, but found this particular one extremely frustrating. I've never had to use walkthroughs for these types of games before, but Order Zero really had me baffled in places. With no skip or hint button in certain areas, my only option was to seek online help and I gave up in the end. I've put the game in a folder to maybe try again if I'm feeling a bit more patient.