I think the single best thing about Casa Marta is the location–Via San Tomaso is beautiful, and the apartment is right next to the Academia Carrara and a path heading up to the Cittá Alta. There is a fantastic produce stand, enoteca, cheese shop, and gelateria right there. And Marta is extremely attentive and gracious. Other reviews have noted street noise in the larger of the rooms (the one with a double bed). It isn't too bad, though we used a white noise app on our phone. We loved our stay in Casa Marta, and we loved spending 10 full days in Bergamo.