Parador Villa Antonio is the BEST place to stay if you want to relax on the beach for a few days. The hotel is right on the beach and the rooms each have kitchens which is great. I would recommend renting a car so you can take advantage of the local supermarkets. The Parador is definitely not luxury but it has all you could need with AC and television and is really great for the price.

I spent two very enjoyable days here at Villa Antonio (I’m typing this review connected to an Ethernet hub available in their social room, taking the time to do so since I've had such a nice stay). The place is right on the beach. As another reviewer noted, you can open your windows a listen to the waves on the beach, and walk out your door and be on the beach in 30 seconds. The place is quiet and peaceful, and feels like a place that time forgot, with a bit of a 1960’s feel. I’d guess that the guests here this week are mostly retired but are very friendly; I’m guessing they’re returning guests year after year. There are optional social events here. Last night was pot-luck dinner night (bring a dish to share with others); tonight is movie night. The staff is incredibly friendly and helpful. They just won an award (4th place in all of Puerto Rico) for the best front-office reception. The pool is small, but the Carribean (20 meters from the pool) is huge. The little kitchenettes (complete with coffee maker) are quite convenient. If you’re looking for a party atmosphere or a fancy resort, this isn’t the place, as other reviewers have noted. But if you want a clean, extremely friendly, quiet, and inexpensive place on a beautiful beach, this is it. I’d definitely come back again.

Some recommendations: Cabo Rojo (a nature preserve about an hour south, for deserted beaches, some hiking trails, and informational museum with friendly staff who can tallk you about the process of getting salt out of the salt flats), and Steps Beach (a national preserve in Rincon about 10 minutes north with excellent snorkeling, with reef fish and various coral right off the beach).

I can confirm everything the previous review mentioned.
Rincon was my favorite areas on the island. Sort of southern calif beach town, mexican small town combo.

We were very happy with the place and are planning on coming back. Great price, clean, right on the beach.

And after 2 weeks around the island eating out, in 5 different locations, it was nice to have a kitchen.
We bought some cheap local fish, at the neighborhood store and put some peppers and tom sauce and fried them up. Great

The beach and sunsets were beautiful and water was calm. I personally like some of the surfing beaches, but they were way too rough for my wife to go out and play. And all the places near the surfing beaches were more expensive.

If you are looking for luxurious accommodations... Pay $50+ per night and go next door to Rincon of the Seas. If you want a comfortable, peaceful and quiet stay for a reasonable price, Villa Antonio's the place. It's an older property, but the room was very clean and the bed was very comfortable. The kitchenette with coffee maker, fridge and stove was nice to have. There were plates and silverwear, but you have to bring your own napkins, dish soap and sponge if you plan on doing any cooking. Still, we were only about 30 steps from the beautiful sandy beach, and just a short walk you can go to the Rincon of the Seas (which looked nice but a bit stuffy, and the karaoke bar turned us off) and on the other side is the Villa Cofresi, which looks like a fun (but loud) place to go and hang out for a few hours before going back to your quiet room at Villa Antonio. The location within the town is excellent too, just a couple of minutes away from the supermarket and excellent restaurants and of course, Rincon's gorgeous beaches. I'd definitely return to Villa Antonio.