I think that 4 players is just right for this map. The item placement makes you want to keep moving (a good thing) and the weapons are not so sparse that you have to keep looking for them after a respawn. The deep water sections are cool, esp. when you pick up haste :]. Only down side was it was a bit too reminiscent of a lot of quake2 maps (big chunky layered ledges around central pits). There were also one or two miss-aligned textures (now I'm nit-picking:])
A really good map thats well worth the download.