Excellent collection of monsters from Expeditious Retreat, statted for use with OSRIC (and therefore 1st edition AD&D). I am using the monsters with my C&C campaign right now, and the conversion is trivial.
PROS: the book is cleanly illustrated and the monsters all get some great write-ups. There are a lot fo interestign creatures in here, and the book is not an eyesore...even the retro cover, reminiscent of Erol Otus (by peter Mullen, whose got the Otus look down pat) is actually rather quirky and fun rather than an eyesore as in other retro games where the need to emulate the bad art of the 70's and 80's accompanied the retro-rule feel. The book is navigable as well with full bookmarks, a big plus for laptop-equipped DMs. Finally, as a resource designed fors classic style AD&D play, it both looks and feels the part, with all the appropriate bells & whistles, right on down to the layout and design. But the art in this one is much, much nicer than anything in Fiend Folio, I assure you!
CONS: I found that putting the monster description at the end of the entry rather than the beginning was a bit disconcerting....sometimes I needed to reference it first to figure out what the heck the creature's weird properties were. A few of the creatures are very...ah...complicated, which is to say, my head started throbbing thinking about managing the creature in-game, but don't take that as a con unless you are keen on simplicity of design.
Appearance: 4/5 - good cleanlayout, design, and nice art; a portion of it is definitely royalty-free and been seen elsewhere, but it's still good
Content: 5/5 if you need new monsters for OSRIC, C&C, or 1E/2E games.
VALUE: 5/5 for old school gamers.