I booked one day diving when I was in Bali and desperately wanted to see manta rays. For starters, this was the only organisation that wanted to book me online on a one day diving trip prior to departure. All other orgs i contacted, told me to book on the spot. Not convenient when you want to make a travel schedule! So big plus for that. The mail contact was super professional, with quick email replys on every question asked and booking very easy with payment cash on the day of the trip. Good to know is they really keep to the 1:4 ratio of divemaster vs divers. Many times with other orgs I have known otherwise. I was diving solo, so they suggested I join an already booked group and appointed me a buddy form the org as well. Therefor I felt perfectly safe and looked after during the dives.
The divemaster was highly trained, highly professional and the gear was well functioning. For boxed lunch we could choose from a menu and we got it on the boat, it was delicious as well.
I booked 3 dives in one day, the second specifically for observing mantas. When we couldn't find any, the dive was split up in two parts (second one with 100 bar left), which made it 4 dives with 3 bottles for the price of 3 dives. So I was very happy with this arrangement, especially because on the second second dive, we made beautiful observations of a manta ray in a 'cleaning station'. So worth for your money! If I ever come back to Bali (mola mola season??) I won't doubt for a second and book again with this org. Big recommendations!!