My mom and I spent 5 days with Olga and her family. We really had a great time with them. They were so nice to us and told us a lot about Cuba's history, they answered all the questions we had with great pleasure. The location of the house is also really nice, it isn't directly in the old Havana but it's only a 10 minutes walk and 1 minute away from the malecon. There is a Hotel and a park in the same street where you can connect to internet, which is really nice since you don't have to cross the entire city to find wifi. If you have the opportunity to travel to Havana I highly recommend you to stay at Olgas house ! Oh and I almost forgot, there is always water and beer in the bedroom's fridge, they fill it everyday which is perfect since there aren't much stores where you can buy it (almost none). The house is just like an hotel, the only difference is that you have a good contact with local people and that the money doesn't directly go to the government but actually helps Cuban people.