The flat is lovely. Beautifully maintained and well appointed. The terrace is a winner. Ideal setting for breakfast and and glass of wine at sunset, with charming views over rooftops, including tops of Cathedral dome and tower in the distance. Caveat: narrow stairwell with 61 steps is a challenge for travelers with heavy luggage, in frail health or with respiratory challenges. Well situated, neighborhood within easy walking distance of major attractions. Don't miss the perfumery and pharmacy of Santa Maria Novella (established in 1612), a few blocks away. Good local trattoria/pizzeria on the corner with a 10€ lunch menu replete with wine. Very good deal. The pizza is also made with very fresh ingredients. A bit further towards the center - recommend the chic Enoteca Bellini owned and operated by a dual national Italian-American young woman. Fine selection and local clientele.
We were met at the flat by Roseanna who was delightful and very kindly made numerous suggestions about places to visit and shop.
Overall a great experience.