We booked this trip to enjoy the San Juan area a couple of days before a cruise. Expedia had a good deal for booking flights and this hotel together, so I took it! After a brief taxi ride from the airport (it was a little over $20 - there is a flat fee plus a luggage surcharge standard on San Juan area taxis), we arrived at the Doubletree. There was a bellboy immediately there to greet us and take our luggage to the front desk. Check-in was a breeze and they had the two chocolate chip cookies waiting for us. Our eight floor room was ready and a different bellman soon followed with our luggage. He was very friendly and offered his advice on what to do in Puerto Rico (of course I've been going there regularly for over 25 years, but I appreciated the sentiment). We were hungry so we walked to the right of the hotel and found Bebo's, an authentic Puerto Rican restaurant that was filled with locals and a few tourists.
After returning from lunch we got to experience our room. You enter into a narrow hallway and there is ample closet space along with an iron, a safe, and a refrigerator on the left. Further into the room there was an HDTV on a dresser to the left and a bed with nightstands to the right. In the far left corner there was a desk and a marble shelf ran along the back of the room. There was central air conditioning easily controllable with thermostat which made for much comfort and a couple of good nights of sleep.
The bathroom was to the left of the bed and is my only main critique of the room. It was clean and functional and designed on trend (as was the rest of the room), but I dislike frosted glass doors and glass blocks making up doors and walls of a bathroom. Bathrooms need to feel 100% private. Luckily the glass was frosted enough to give at least some idea of privacy. The bathroom could have also used more storage space.
The property was keep sparkling clean the entire time and offers many amenities. We did not eat at the bar/restaurant as we enjoy the local cuisine and they also did not offer soy milk for breakfast/coffee. There were multiple seating areas and areas to use computers. Thankfully, the hotel has free wifi which is a "necessity" as your smartphone may not work in Puerto Rico.
We did take advantage of the fitness center which had a few cardio machines and free weights. It was small and functional, but lacked any nautilus-type equipment. Outside of the gym was a great feature of the hotel, its pool, whirlpool, and kiddie pool. They were open 24 hours a day and were an oasis from the heat, hustle, and bustle of San Juan.
There was a chocolate shop on site as well, which doubled as a convenience store. It wasn't really necessary as there is a 24 hour supermarket across the street. That was a positive of the location of the hotel. Depending on what you were looking to do in San Juan, the location may work for you or may not. The hotel is not quite on the Condado strip, but it is walkable to get to some of it. To the right is a bit of a neighborhood in transition. There was a mix of trendy stores, restaurants, and bars as well as some older businesses. For $0.75 you can catch a bus to some of the further away areas of Condado, Old San Juan, or Isla Verde in the other direction. However, the buses don't run terribly late and the schedule is not reliable, so then you are looking at a ~$20 taxi ride. You may want to figure this in to your plans as while this hotel is more affordable (and very nice) than some of the others, the cost to get to and from certain areas may add up.
Check-out was very quick on the last day and the same friendly bellman from the first day helped get our luggage from our room into a taxi to get to the cruise pier.