I spent several days diving with Blue Marlin Divers on Gili Air and found the entire experience to be first rate. They handled my transfers from Mataram to Gili Air and arranged for my accommodations. The diving was excellent, the staff was great, the accommodations were more than adequate, and the choice of nearby restaurants was very good and quite reasonable as well. There was quite a mix of divers from Europe, USA, Australasia, and there was staff able to assist in virtually all languages as far as I could tell. I look forward to going back one day. You will not believe the views out to Mt. Rinjani on Lombok in the morning. Only negative, and it is a pretty minor one, showers are kind of briny as there is no freshwater available on the Island other than bottled water. You adapt pretty quickly though and it should not deter you from enjoying Blue Marlin if you get the chance.