Here's a side / front perspective of the playing area. The Greenhouse Progress club fits 12 tables (4 tables in 3 rows) with plenty of space for each court.
On the night that my partner and I arrived, there were a number of players that appeared to have been training seriously for quite a while, as shown in the photo. There were also some other people who looked to be just having some fun playing a bit of ping-pong at the other end of the hall. My partner and I said hello to a couple of players who were sitting down having a rest, and were told to feel free to go out and have a hit for a while. So we did, getting in a good warm up and enjoying the conditions on court.