Concierge.com's insider take:
The aptly named, 18th-century Centrale is right near the Quattro Canti, steps from the cathedral…in fact, it's near everything. The lobby's frescoes, chandeliers, gilt-framed mirrors, and marble mosaic floors make a grand first impression; if you're not careful, though, your room might be a relative disappointment. Those who like their digs authentically worn (and who like to save a few dollars) might not mind the 58 "classic" rooms and suites—but more persnickety types may find the faded furnishings and upholstery dowdy. The 46 "neoclassic" rooms (added in a 2003 expansion) are a better bet; despite a slight furniture-showroom aesthetic, they have solid parquet floors, mosaic tile bathrooms, and lots of space—and only cost a little more.