Our overall experience was great. By a misfortune we ended up arriving much later than expected, but Viqui did everything in her power to help us solve the issue.
The room itself is quite good. It was clean and wide, though the pictures are so beautifully taken than we thought it was much brighter than it ended up being. Also, the doorbell doesn't work which was a bit of an inconvenience. Besides these last points, it's a very good place.
The apartment is located 700m away from San Telmo main square, which is relatively close, but it's also 400m away from Constitución, a not-so-safe area, especially at night.
Once again, I would like to point out Victoria's disposition. She's an excellent host that would make any guest feel at home.