We recently stayed at Opera apartments which is approx 20€ in an Uber from the airport.
The apartment was very clean and had everything that we needed including shampoo/shower gel, coffee facilities, hairdryer, travel adapter and netflix. We were provided with fresh towels and loo roll during our stay which was great.
Our apartment was on the second floor and there is a lift available. On the third floor is a roof top pool and large sun-loungers perfect to relax after a day of exploring! Sara was a great host and check in was easy. There are also lockers available for 2€ to store your suitcase.
The apartment is approx 20 min walk to the cathedral and there is a little square full of bars and restaurants at the end of the street as well as supermarkets 2 mins away.
The only drawback about our stay is the bar outside the apartment which is noisy until late, I was thankful to have some earplugs! Otherwise we had a great stay and would recommend.