I was also looking for venues for a vow renewal/ wedding in Riviera Maya in May 2015, but after I settled on a venue and was about to sign the contract we decided on Cabo (since airfare is cheaper and more convenient for our families) but you should check out El Cid Marina and Spa. The wedding coordinator responded quickly and answered all the questions I had. She was great and the resort/wedding packages were totally affordable and nice! Good luck!