Fiji: Beachcomber Island questions

Hello:

I will be traveling with 4 other friends in February and we will be
staying in Fiji for 4 nights. We are all American guys in our early
30's, experienced travelers and are looking for a great place to stay
that gives us beach, scuba, watersports, and of course, good nightlife.
I've heard a lot about Beachcomber fulfilling these criteria; is the
island geared more towards the 18-23 year old set? Is the crowd mainly
Austrailian students and backpackers? A couple of us are happy with
trying the Beachcomber, but some of the group have some concerns. Is
the food decent? What can we expect from the Beachcomber for 4 nights?