As for the MC, I usually never GM monsters as written anyway. I always add or subtract something or other to keep the players on their toes. So if there's something you don't like, change it. I don't see this as a fault with the book, like "why am I buying a book if I have to change things". I think monsters' stats and descriptions should be pretty fluid.
The art/layout is pretty mediocre, which is a shame from a marketing perspective because people like to buy attractive books and I think more people should be playing RQII 'cause it's a great system. Not much of the average design affects usability except when a stat block seems to be floating on a page without reference to which monster it belongs to. This is poor design IMO and is a problem in most RQII books. I break my taboo of never hand-writing in books by penciling headings over stat blocks.