As ohters already wrote: the guesthouse is well-located to visit the old-town, you find shopping opportunities nearby. Mariacristina is a great host and takes exceptional care of the well-being of her guests! The room itself is nice. The only disadvantage being that is has a comparatively small window. You might want to leave the door open in order to guarantee some air circulation. Beside that you have air conditioning so it won't get too hot.
If you are looking for a room as a base to explore the city, this might be a good option for you.