We stayed 4 nights during our honeymoon in Costa Rica at the Issimo Suites Boutique Hotel. While we enjoyed the luxurious and romantic room, the rest of the hotel, especially the "spa," did not match up with the quality of the room itself.
The room - we stayed in one of the "honeymoon suites" on the very top floor - was incredible and among the nicest we stayed at while in Costa Rica. While it did not include a balcony, it came well equipped with a seating area, a fridge, jacuzzi tub, incredibly comfortable bed, great shower, etc. The entire presentation was exquisite. Also of note was that they gave us a complementary bottle of (very good!) champagne during the first night of your stay. My only complaint about the room itself was that there were ants near the jacuzzi and some other areas. We are in the jungle after all, and the alternative would be to spray smelly insecticide all over the room.
However, the facilities left something to be desired. The cleanliness of the pool area was lacking -- e.g. the "noodles" they provided for the pool were dirty. It was annoying how we had to go to the front desk for towels and sometimes they were out of them, leaving us all wet. The drinks weren't the best we had, and expensive aside from the two for one happy hour promotion from noon to 6pm. The restaurant food was expensive, and only decent. Breakfast was the worst we had in Costa Rica, though it was edible and nice to have fresh fruit complementary. Sometimes, they launch into a buffet system instead of seated without rhyme or reason, but whatever. It's quite a long walk to the beach, but the beach itself is very beautiful, if a bit rocky.
The staff was friendly, but didn't speak English very well - which was a challenge because we didn't speak Spanish. It was great that they bring coffee up to your room every morning -- however, be warned: one of the days our coffee tray was entirely infested with termites! Again, a consequence of being directly in the rain forest.
The hotel would score higher than 3 stars if it weren't for the spa, the worst part of the experience. During our stay, they were running a special for a "couple's massage" for $69 dollars. The massage was the worst that my wife and I ever experienced. It was extremely hot and smelly in the spa. Further, I felt like I was choking on the head rest the way they had it set up. And worst of all, there was almost no pressure applied, despite both of us requesting that the massage be harder. It was more of a "rub down" than a massage. Do not waste your money here. They bill it as a professional spa, but it is anything but. It also isn't a couple's massage. It's in 2 separate rooms. You have been warned regarding what they bill as the "Body-Life Spa.".
Finally, we recommend the tour of Manuel Antonio park offered through the hotel. The guide was very good. Other recommendations for Manuel Antonio would be beaches 2 and 3 within the park itself (less crowded), and the restaurants Kapi-Kapi (expensive but excellent fish and seafood), Soda-Angel (typical Costa Rican plates) and Ngo (surprisingly good Vietnamese/Chinese fusion cuisine for a cheap price),
This review is the subjective opinion of a TripAdvisor member and not of TripAdvisor LLC.