This is a small but great apartment which slept three with no issues. It would also sleep 4! Big windows but not too warm, kitchen with everything we needed and coffee provided and a lovely terrace to sit on in the sun. The place was sparkling clean when we arrived but dust accumulated quickly! Of course, this is nothing a quick clean from us couldn't fix. We were also able to hear a lot of what was going on in the apartments upstairs and next door.
The apartment is great value and Jorge and Rocio responded quickly to our questions and were very helpful about letting us check in late (after a late flight) and check out at a time that suited us. They even sent a handyman out to fix a stuck window on a Saturday.
We attended a language school while we were here, the apartment was perfectly situated - a 20 minute walk to Plaza Merced. It's also a 15 minute walk to the city centre and 25 minute walk to the beach. The neighbourhood itself however isn't too touristy or built up, but it lacks character, if that's what you're going for!
Jorge and Rocio both speak very good English.