Great, clean space in Old Havana. Very walkable; close to plenty of restaurants, shops, and such. Two short blocks to being able to walk along the water. Yany, Ricardo, and Jennifer are fantastic hosts. Very hospitable; they look after you like family. Language barrier was not an issue. They helped us with any and everything we needed. Their breakfast is great - if you get it, make sure you are wearing your eatin' britches, cause it's a lot of food.
The only negative was the mattresses were quite firm. I know some folks like that, but if you have back issues like me, you might find it uncomfortable.
Their new spot, Casa Las Mil y Una Noche is gorgeous. They invited us over for sandwiches to check it out. I would also recommend staying here.