Juan and apartment are nice, good location, and he is always responsive trying to remain it in a good condition. There were never problems with internet, which is good if you work or stay for longer time.
I stayed month, and for me main minuses were: my room was super dark, is not that visible on pictures, but there is never light from window so you always have artificial lights on, and second one, two rooms have glass door in between so you literally can hear everything, every word, so your comfort depends on your neighbours attitude.
Always pluses and minuses, for short stay stay is perfect, for long one I will consider another place