What a beautiful dive! What fantastic visibility! Molokini crater is indeed a must-visit place. Huck and I took a boat (Maui Diving SCUBA Center) out to dive within the crater's cove early in the morning. We didn't see any large (or particularly interesting) marine life, but the clarity of the water was well worth the visit. The crater itself was... a little crowded, but there was plenty of space between SCUBA divers on the floor and snorkelers lollygagging above.
Huck and I look forward to returning to dive the outer part of the crater, as well as descending outside of the cove.