The location of the apartment, though very convenient to explore the city, makes it very noisy as it located just above the road Av. Providencia (eight lanes). Sound-proofing is efficient so it is ok to sleep when the windows are close but it is not pleasant to be inside with the windows open (or to stay on the balcony). Apart from that the apartment is well-equipped and small but comfortable. Communication with Ruben was easy.
Overall I think it was overpriced. I do not recommend it for long-tem stays, especially in summer when it can become very hot and opening the windows become essential.