I am a returning guest, having stayed at Carla's place for the second time and enjoyed the experience once again. It's a perfect balance of proximity to touristy and busy historical parts of town (just a few Metro stations away!) and residential safe location, which gives an opportunity to feel like a local. The place is very well organized, top floor guarantees quietness, and the private terrace turns it into a truly unique experience. Perfect spot for a solo traveler or a couple if you are used to European capital cities and making the most of smaller spaces (US standards may need to be adjusted to a different cultural norm).