David's place was an amazing haven in the heart of Havana. Our room was large, clean, and well-appointed. The beds were the comfiest we had on our trip~ we found a lot of hard, lumpy-bumpys in other casas we stayed in. The staff spruced up the rooms during the day which was wonderful and unexpected, and our belongings were totally safe while we were out. There was also a watchman all night in the courtyard of our building. Our room was a couple blocks away from the main hostel where David and his crew work and serve $5 CUC breakfast. It was a very short walk through the neighborhood to get an otherwise hard-to-find meal in the morning.
We liked the location, which is residential, because it wasn't touristy, and it is only a 10 minute walk to the touristy stuff near the Paseo del Prado (museums, Capitol, Old Havana.) And going the other direction, it was less than a 10 min cab ride to Vedado. The streets in David's neighborhood are bustling and very loud during the morning/day, but very quiet at night. Bring snacks! Havana doesn't have bodegas full of junk food the way you may be used to at home. Bring toilet paper! While bars, restaurants, and museums have restrooms, they usually don't provide it except for a fee.
David was such a courteous host. He helped us arrange taxis (for 12ppl!) to Viñales, find places to change money, answer any and all questions, and find more rooms in Havana for other friends on any given day. Even when we weren't staying with him during the second leg of our trip, we continued to stop by his place to use him as a resource for all things Cuba, and he welcomed us graciously.
Bonus: he has an original art collection of some very famous Cuban painters. He also keeps turtles in his fountains in all the lovely courtyards in his buildings and even a crocodile or two. I can't wait to visit Cuba again, and if I do, I will definitely be staying with David.