I was just there, the owner is an old friend and my son and I got a VIP tour. The lagoon's been cleaned up quite a bit and they've put in some aerators to keep the SO2 down, that seems to be working. The habitat (the old PRINUL) is in very good shape, clean and well cared for. The staff were helpful and attentive. The diving is nothing to write home about but there was a small nurse shark in the lagoon and anyway, that's not what you're there for. Staying overnight in (or even just visiting) a saturation habitat is something that very, very few people have ever done. The expense of an overnight clearly makes it "not for everybody" but the "visit with lunch" seemed kind of neat and I'd be willing to pay the fare for it once, if I'd never done it before. For you patch freaks they do offer an "Aquanaut" specialy course with a 24 hour saturation, but it costs big buks.