I had a lovely stay at Tita & Jorge's. I found the location ideal-- walking distance to central attractions, but in an authentic and charming neighborhood that didn't feel overrun by tourists.
Communication was great and Tita even helped me check in early even though I didn't give much advance notice. The unit is at the top of the building and the views were a delightful bonus.
I was traveling solo so I didn't have an issue, but one thing to be aware of is that the bathroom is quite small, with virtually no counter space for toiletries, etc. It can feel a little cramped at times but it was fully functional and didn't pose any real issues.