I went nine days ago.
Visibility was 10-15 feet and the water temp was about 72 on the surface, not much less below. There is no appreciable thermocline.
It was the first time for me and my buddy to dive there. I've heard about it for years, so we decided to check it out. What was amazing to me was how FEW divers there were. I think I saw six or eight (counting us) all day long. Therefore, we practically had the place to ourselves. While the grounds and building were clean and well groomed, the items underwater were in a bit of disarray. Certainly, it's fun to go through the plane, busses and such, but the platforms were rather run down and in disrepair. Couple that with no aquatic life, and things could get a bit boring in a hurry. While it looks like it could be a great place for training, it probably isn't too good for just recreational dives.