The best part about Rodrigo's place is the location. As someone who lived in Madrid for two years, I wanted to find somewhere to stay with a great location and a good price, and this place met those requirements. It's only a few blocks from metro station O'Donnell.
The place is small -- maybe smaller than it looks in the photos -- but it mostly met our needs. The bathroom and kitchen were pretty dark, but we weren't cooking so the kitchen wasn't a problem. There's also a downstairs bathroom with better lighting for getting ready.
The only thing that gave us some problems was the Wi-Fi. We are digital nomads and rely on having a strong Wi-Fi signal to get our work done, and unfortunately the Wi-Fi only worked consistently for our first two days there. After that, we had to go find coffee shops to work in. But if you don't need to work much while you're here, that won't be a problem.