I really enjoyed my time in San Telmo. I arrived early after an overnight flight and was welcomed by Silvana who let me in and showed me the apartment. I did not meet Jose Luis, but we communicated through WhatsApp, which was quick and convenient. There is a booklet in the apartment with recommendations, supermarkets etc, which I very much appreciated. The apartment had everything I needed for a pleasant stay (including a good internet connection). It is on a fairly busy road, so I felt safe walking back to the apartment on my own in the evening. The location is great, close to all the sights in San Telmo and also very close to subway.