I haven't used Silent World but would recommend anyone other than Quiesences. GF and I dove with them in December and the boat broke down- it happens- but unfortunately instead of getting the paying customers back to dry land they let the Captain mess around with it as we drifted for 2 hours. They had other boats and Captains available offering to help and in constanct contact on the radio and cell phone- other dive ops including Silent World stopped to offer assistance but for some unimaginable reason we continued to drift until after dark- finally they sent another boat to get us back. Hours past our scheduled arrival we had concerned folks waiting for us at the dock- they closed up the shop so we couldn't even use the facilities when we finally got back. No one from management there to offer an appology or insure we got back.