Columba was a great host. Sharing a flat with a local is always a good idea, specially if they are as involved as she is. She gave us recommendations, a map, and even masks due to COVID. She also prepared a healthy and delicious breakfast for us (much needed since all we ate during our stay were pinchos). I was worried the flat was out of the way but it turned out for the best: there is a 15-20 min bus that took us to the center, parking in that area of town is much cheaper, and being in a calmer environment was refreshing.
Would repeat 100%.