A number of reviews have mentioned the stairs. Please note these as they are steep with areas of low overhead ceilings......ouch nearly got concussed the first time going up! They are narrow, steep and good for a cardio. Best idea would be to go up with the hosts representative without your luggage and mindfully take each step being aware that a hit in the head is possible at every turn.
Now that you have that taken care of the apartment itself is in a good colourful lively neighbourhood. We love markets so the fresh food market was a delight. The apartment is very close to the attractions. Go through the car park that the apartment over looks to get to the cathedral. We love lively neighbourhoods, with colourful people so this area did not disappointment us. We loved it. Just mind your head each time you go up and down the stairs or do it kneading and consider it a penitence for all those Catholic Christian sins!! Enjoy and laugh. You are on holidays!