I had a great time. I understand where the previous review is coming from. The guys there are a bit relaxed, because I guess they follow an assumption that the divers that come there are more experienced. For example me, I don't like to be helped onboard etc, I prefer to just dive in after brief briefing and be left alone with my buddy :)
Dived with Extra Divers in November 2015. Not impressed!! Whilst there was a briefing regarding the dive site there was NO safety briefing. There did not appear to be any life-jackets on the boat. Dive guides were unfriendly and inattentive. No assistance with taking fins or assisting divers out of the water. It might be he only dive operationin the area but it leaves a lot to be desired.
Oman Dive Center is located in one of the most beautiful lagoons I have seen. The dive centre is big and the boats are well equipped for diving. The diving around the Dive Centre - i.e: within boat rides is also rather decent, often great visibility and lots of marine life.