This apartment is a really good value in a fantastic location. It's not the most comfortable or luxurious AirBnB you can find, but for the price it's a great choice.
Pros: The beds are comfortable, as is the upstairs sofa. Even though there aren't a ton of windows, the apartment gets plenty of natural light. There are two good places to hang clothes. It's very clean. It's in a charming neighborhood within easy walking distance of some truly excellent restaurants, a great shopping district, and some good parks. Also very close to a major train station. It's just a 10- or 15-minute walk downhill to other great neighborhoods and the river. One of the best miradouros, or scenic overlooks, in the city is just a block away. And it's very close to the best rooftop bars/restaurants in town, which you should definitely take advantage of. The restaurant directly downstairs closes by midnight and the street is very quiet after that.
Cons: the bathrooms are very small and they have no windows, and not much in the way of vents either. The shower stalls are so tiny you'll bump your elbows into the walls every few seconds. That said, the water pressure is good and the showers are clean. And there are two of them, which is great. The stairs up to the apartment are crazy steep and very shallow, not easy to haul luggage up and down, but that's hardly the host's fault.
All in all, a good option, and I have no regrets.