Great place, great location (2 minute walk to subway, 12 minute walk to Herrengasse, the center of shopping/eating), pretty quiet (there's a restaurant downstairs and up the street a bit, but not too bad).
Spotless, updated and in fine condition. Very spacious. Only criticisms would be so minor that they're not even worth listing (okay, one: a fan or two for those hot summer days, please).
A terrific experience.