I spent 10 days at the FS Bora Bora last year, and it was about 3 days too long for me. We only stayed here, as we were with friends for a wedding.
As a honeymooner, who tend to be more budget conscious, I would make sure you budget $500/day to stay at the FS. Food, drinks, trips, spa, laundry (we spent $450 over 10 days!) can add up fast at this resort.
Make sure your TA gets you free breakfast and early checkin, late checkout.
The best thing we did here was a tour with Tanoa on his very nice boat, almost certainly cheaper to book direct instead of through the FS concierge:
http://www.tanoaprivatetour.com/