Possibly wrong choice to stay at FS Jimbaran. Please consider Amankila with a high end suite. I found FS Jimbaran much more family oriented with a good amount of kids and teenagers. Not a honeymoon paradise. Again the beach at FS is not that good.
For me the airport across the bay kinda killed it for me. Also for a different experience try FS Sayan. I think FS sayan and Amankila would be a great combo.
Honestly, Bali was never marketed to me to have great beaches and I found that to be the case when I was there.