Trade Aperture 2 is a decently sized, open Portal themed trade map with a unique layout.
This is a Portal themed trade map with a unique layout. It's well decorated, & has a safe room. Every area of the map has some sort of decoration, whether it be the outside areas with the broken panels or the couches in the safe room. It's all lovingly portal themed. The map also runs very well. In my tests, I could never get it to go below 200 frames per second.