I've personally played here (soft opening) with a few members of my team. To me it has a lot of potential.
When we played, the first floor was open but there was no firing allowed in the main hall. It was more like a truce zone to walk to other wings. Its lots of fun to play there but with the lack of gameplay we had on the 1st floor made it seem very limiting, especially since some of the wing doors were locked forcing us to only use 4 points of enty to the second/first floor.
We were also told there is a much larger field for more serious games/milsims. It includes Indoor/outdoor with a courtyard.