Sol Kayo Guillermo is unique in a few ways. It's not a hotel, it's a collection of two and one story bungalows. We walked out of our bungalow almost right onto the beach which was convenient and down right cool. The hotel next to it, the Melia, has a long pier going out into the water, which attracts fish underneath, which makes for hours of free snorkeling. There is a coral reef near by. Not close, but close enough for a good swimmer, so if you have your own gear, bring it.
There are catamarans going out to the coral for $11. What makes the location unique to any other resort, is that the island is very secluded. As a matter of fact there are only three hotels on the island and next to the Sol is nothing but land to walk and explore. The resort in general is just fine. The rooms are artistic and clean, the grounds are pretty, the hut bar at night is a real treat and the night time entertainment is breathtaking, as they have a few world renowned dancers. The staff is wonderful, but do yourself a favor and bring stuff to tip with, rather than money. Since its a communist country, they have little access to things we take for granted. Tip the bar and restaurant staff with candy and gum (they cant buy that kind of stuff and they take it for their kids). Tip the chamber maids with things like razors, feminine hygiene products, make up, nail polish, hair accesories, costume jewelry, magazines, etc. and be sure to leave a note that its for them. Bring all that kind of stuff around your house that you don't use anymore, including old t-shirts, etc. Bring stuff for kids on your tours into town, such as crayons/pencils for boys and hair pins for girls. You'll be glad you did. Others have reviewed the food as bad. They must be picky eaters. The food was fine and there's lots to chose from.