Went to see this today. Seems that it hasn't been getting the numbers that they predicted.
We went to the open day a couple of months back. We were pretty much the only ones there and easily spent 1.5-2hrs on OJA. All of the intercoms, PA systems, lighting controls etc. were functioning and the HARS crew were more than happy for us to fiddle around with them. We had the best day and I'd love to go back at some stage!