Playability: There is no real 'area' with which to develop your castle in this map. To some, this may be a turn off. I quite liked the idea, though, as it makes a change from wide open spaces. A little bit more of a challenge.
Balance: Always difficult to rate in a free build map as far as I am concerned. A bit tricky to play well, and I was disappointed to see so much gold with which to start off with. I prefer a small amount and build up funds either by taxation or selling goods.
Creativity: Nice idea having a themed map. It's different, at least, and therefore I think deserves a 4.
Map Design: A bit crude and rough around the edges. I know that reviews are personal, and not everyone agrees (which is good, everyone has preferences) but I do love to see a landscape where thought and time has gone into the creation of it. I could only get one stone quarry on the map, which is a bit of a downer.
Story/Instructions: Okay, so not much there, a few comments included in the zip file, but at least an effort has been made.
This map is okay, and still worth a download. Some may love it, so I think it is worth a recommendation.