I mostly enjoyed this map. it was a bit frustrating when the enemy would come and stand alongside my base attacking it with ranged attackers and not being able to attack back, and very annoying that my units would then run into the waygate and walk through the maze before coming back to my base. But it was still fun overall despite that.
I'm not sure if it only unlocked towards the end of the game, but we eventually worked out that the gates at the back of each base open when you walk up to them.