Carlos' place is in an excellent location across from a cute little square. We felt very safe in the area as well as surrounding neighborhoods. The apartment is very chic and Carlos provided a ton of bottled water for us which was really nice! The bathrooms are all very clean, and the main one was probably the size of my apartment! Also, Carlos was super responsive to all my questions, and even let us store our stuff in the apartment way past check out time since our flight was later in the evening.
Only thing to note is that there are really more like 2 beds instead of 3. The 3rd bed pulls out from underneath one of them, but you can't really pull it out all the way (there isn't enough room to, and it doesn't really look like what you would consider a bed) so I would recommend this to a group of 2-3 people (we had 4 and one person slept on the couch - which she said was comfy).