You definitely can't beat Alvaro's place for location. It's right next to the mushroom and so many amazing restaurants and bars, and the Old Town is just a 15-20 minute walk. There were a few downsides to staying here though: as the bed is in the loft, it does get quite warm and the air con didn't seem to work; the bathroom smelt very damp and unpleasant, so we thought perhaps there was a leak somewhere; and the lighting in the living space is fluorescent and definitely not as warm as shown in the pictures - I was WFH for a couple of days during my stay in Seville and it wasn't the nicest environment because of this.