I wonder where all the old reviews of Keysborough went? I'm positive that there used to be a stack of reviews for it here (none of them were particularly good if I recall). Perhaps it was just discussed in a forum thread.....
Every time I've gone in, the marine room is pretty average - especially the coral tank in the middle. Last time I was there I was almost prepared to buy a coral to save it only to find out that they were trying to sell it at full value. None of the times prior to that have I even considered that.... There were a lot of very, very unhealthy (and some dead) corals in the tank and it looked fairly neglected every time. I've never seen a large variety of corals either - but that could just be to do with bad timing.
That monster tank when you walk in the door, and that massive long one up the side are pretty cool displays though, though I think if you're going to make them focal points, you probably need to try to keep them a cleaner (even if that looks to be a bloody epic undertaking). Looked like they have plenty of fish and plenty of hardware in stock.
I much prefer Fishworld... I've never walked out there with less than 2 or 3 corals.