Lupe is a very nice and accommodating host, she waited for my arrival.
The place has a superb location - a 10-min walk to the city center and main touristic attraction, less than 20 minutes to the beach. There are two supermakers very near. It's also very safe as the building has a private gate.
The room was just OK. It's not big and there is no chair nor a table. The window gives to the inner yard, but even when I closed the window there was a lot of noise from the outside, both nights I stayed there the neighbours were being very loud (and drunk/high I assume). You share a bathroom with the guest(s) from the other room.
The appartment was very clean and the kitchen well equipped. You can use Lupe's spices, teas and coffee, which was nice. Since there is no chair/table in the room, nor in the kitchen, you can only eat in the living room (which might be occupied the hosts and their friends).
I stayed there over a weekend so Lupe and her son were at home all the time. I like kids and he is adorable, but it's something to have in mind if you're looking for a private, quiet place instead. One night a group of kids had a sleepover and were talking and laughing until late at night, so between that and the noise from the drunk neighbours I didn't get much sleep.