I posted this under a separate thread but I think it was your question the same.
I think the online reviews of Kasai are largely accurate. The diving and divemasters are good. The shop has rebreathers, doubles, stages etc. if you're into that, or rec setups including bp/wing or jacket style. Our boat has largely been 4-6 divers split with 2 DMs. I've seen most other boats cruising with around 12 divers...this could be a fluke, but unsure. For better or worse, Kasai's dive schedule seems to start later than any other shop which makes for a later day, but then I have yet to see other divers in the water except for the sardines dive. The house pier extends almost all the wall to the depth drop off. Snorkeling is easily accessible regardless of tide level thanks to the pier. I'd be happy to dive to the house reef any day. The food is okay but not great. The resort is quiet and/or isolated depending on your perspective. It's about a 20min walk or 5min tricycle (170 php) to the bulk of the other dive shops, bars etc. The rooms are fairly good and huge. The showers are also huge but with a horrible shower head.