The hotel is located far from any real sort of 'life' outside of the hotel properties, so if you're looking to get away I highly recommend it.
The prices is fairly decent, and hotels.com weekend pricing seems to be better than booking it locally (not the case with weekdays).
The king room was spacious, and came with a balcony that allowed for my gf to escape the purposefully cold set temperature the AC.
Food was decent, but I'd recommend requesting for their 'flute' like melodies to be changed to something more local, or anything different really... Unless flute is really your thing for the entirety of your meal.
Try the pupusas, as I found them to be quite comparable to some of the better ones from downtown San Salvador.
The sandy beaches were great, especially considering the rocky conditions of El Tunco for the time we were there. You can walk, or jog a very long stretch of the beach to catch some rays, and enjoy the sounds of the warm ocean waves.
Overall we were happy with our stay, and would also like to mention the staff were quite helpful and friendly. The drive to the resort can seem long at night, or perhaps very dark would better describe it. But you'll immediately feel safe once on the grounds.
Keep an open mind, be aware that it's a Spanish speaking location, and bring your sunscreen... This is a very decent little place.