We just got back from Curacao and had a great time!! Everyone was very friendly and it was such a fun Island to explore. First off we rented a car from D&D Car rental and we made a great decision there. We were met outside the airport with our car and we were on our way in about 10 minutes. No hassle and little paperwork. We told them when Our flight left and they met us in the airport drop off to pick up the car. I don't think I could have gone any smoother. They were by far the best price also. I got the week special which was a Ford Focus for $280 for the week. Which included all insurances. We Drove that car all over the Island.
Now For Beaches: We went to Cabana Beach, Mambo Beach, Kenepa Beach, playa porta Mari, and Daaibooi Beach. Our Favorite was Playa Porta Mari. You have to pay admission to this beach but it was well worth it. The beach was clean and so were the facilities. The snorkeling wasn't as good as Kenepa beach but it was still pretty good. We also ate at the Beach bar and the prices were fair and the servers were very friendly. We would go back to this beach in a heart beat.
All in all it was a great vacation and would definitely return to curacao. :)