Brilliantly located between the Mercato Centrale, the station, and the Duomo. Nowhere is far away but it is not in the noisy touristy part of town. The market has wonderful food, fresh pasta and amazing bread, If you don't want to go far the Conad store next door is as well provided as any supermarket - a bit of a tardis, looks small but opens out into several dimensions.
Pietro is, as everyone says, very helpful and obliging. Always available though you are most unlikely to need any extra info.
It is a great mixture if hi tech and traditional furnishings. It really has been most thoughtfully worked out.