My wife and I stayed at the Wyndham Rio Grand Mar for our (her lol) babymoon and have had an absolutely wonderful trip. We landed late Friday night and basically just got in and slept. The next day we took it easy and my wife got a spa day and manicure and I watched football and enjoyed the resort. Sunday, we rented a car and drove to Old San Juan and walked the big fort on the tip of the island and had some incredible food in a tiny hole in the wall place behind a store. Monday morning, we drove to El Yunque and hit every <1hr trail and observation point, and walked down Angelito trail to the river to dip our feet in. Absolutely incredible and beautiful. Today, we hoped to swim in the ocean some more but every beach has red "don't swim here dumbass" flags up so we settled with driving through Luquillo and getting some souvenirs and enjoying the local food.
Biggest thing was getting a rental car - it made the island SO MUCH smaller and easier to get around. A one way taxi from the hotel to San Juan was $80, a rental for a day starts at $65.
But man, we lucked out and got a Wrangler for our rental. Driving through a rainforest with the roof off and listening to the nature is really something else. Highlight of the trip for sure