First, The layout needs a lot of work, The narrow hall ways can be a death trap for wardens and blus. Reds have a lot of advantage when attacking blus in a narrow hallway like those. Even though the map has been out for a while, the entire server I play on has a difficult time finding minigames, the map seems like a maze.
Second, Some Mini-games are fun and original like Bloodrun and Obby, They use obstacles I haven't seen in any other map before, but then there's minigames that feel pretty generic like Climb.
Third, The Easter Eggs and Secrets are probably the best in the Jailbreak map list we have now. The Invis Power up is fun to rebel with, and the map has a lot of ammo-spots that I don't even know the locations of.
Basically If you made it less claustrophobic, opened up the map a bit, made Signs indicating where the minigames are, the map wouldn't be received so poorly on the Server I play on. I have experience with the Quake series and seeing a map like this be received so poorly is sad.