Pilar's place was just as described: powerful A/C, a fan, a private bathroom and a bed. She's a wonderful lady who is extremely attentive and incredibly accommodating. She arranged a taxi cab to pick me up at the airport that took me directly to her house (30 cuc paid directly to the driver). The 30 cuc for the driver is a bit higher than others, but he's incredibly professional and genuinely nice. Her apartment is centrally located and within walking distance of all of Havana's major landmarks. Its a 5 minute walk to the center. The neighborhood of Habana Vieja as a whole is pretty desolate at night, but it was incredibly safe. I never felt uneasy throughout my entire stay.
The room is impeccable and clean. She always asks if you have any questions about where/what to do in Havana and will clean your room whenever possible. I left the door open to my room two days in a row and she cleaned the bathroom, changed the sheets and provided fresh towels. She has a list of services she offers such as breakfast (5 cuc), bottled water, beer, etc. As long as you tell her the day before, she'll have breakfast ready for you at the time you specify. Breakfast consisted of: ham, cheese, scrambled eggs, a small salad with tomatoes and lettuce, toast, fresh juice and a small Cuban coffee. The convenience of breakfast was great because my trip was short and I wanted to explore as much as possible.
There's a small safe to put your passport, jewelry, extra cash, etc. inside the room. She provides you with a key that opens the main gate to get into the building and your room, but not the apartment itself. It was never a problem as she was ALWAYS there to let you in.
I have the advantage of speaking Spanish, so admittedly my experience was a little different than what could be for others, but nonetheless Pilar was wonderful! She is a very nice lady! Highly recommended! Pilar is the best!