The beach is smaller, yes, but this happens a lot. No need to worry about getting a chair on Club O beach. They have 2-3 rows of chairs halfway between The Perch and Papaguyos. You can always buy your own and bring it with you. Certainly is cheaper than spending $20 / day for 2 people. Even if you pay $40 for a lounger at Ace, you would still save $60 in 7 days, then just leave them for someone else. Pay it forward kind of thing. And, don't worry, beach will return. The beach has been smaller in years past and no sand has ever been brought in. I doubt it would do any good anyway, the ocean would take it just like it does now. Have fun and just enjoy.