Grand Cayman Island!?

My family and i are looking to go to grand cayman island for our summer vacation. We heard of it through people we work with... i personally haven't heard much about this island and wanted to hear some feedback if you have been there or heard anything about it. I also would like to know if you know any good websites for discounted prices on vacations! ...also one more thing if you have been there what are some good places to visit food and activity wise! Thankss!!!