I've always absolutely loved this map, and the concept of the hill moving around was unique and not something I saw too often among KOTH maps. I also like the large doors that open and close as the hill train moves through them. It has a great layout too which is fun to play on.
The only thing I didn't like about this map is how I feel it invalidates Engineer's class role. You have to move your buildings constantly in order to be effective, which is rather irritating as the hill is moving constantly. I suppose the same can be said for a lot of maps/gamemodes though. Lovely map!