We stayed at Teresa's apartment for the month of April, 2019. We enjoyed it very much. We love the fact that it is a very modern architecturally designed apartment with all the modern conveniences in a 16th century palazzo. The apartment is bright and quiet because of double interior and exterior balcony doors each with double glazing.
The neighborhood is lively and there are real people living there not just tourists. The neighbors hang their laundry in the court, the old lady down the block lets her dog out on the balcony every day and the plaza has a children's play area complete with a bubble man. The neighborhood is very convenient. It is a short walk to the Prado and a longer but very interesting walk to the palace.
Shopping is excellent and you can buy everything at the nearby department store (including groceries) or shop at the many local stores and farmer's market.
We would strongly recommend this apartment.