The apartment is nice and spacious and in a great location (with balconies overlooking a public area beside the river just north of the old town). It's very handy to walk into the old town for dinner or along the river bank to other sights like the Guggenheim Museum. Everything was as described and communication with the hosting company was smooth.
There were only two minor wrinkles. Key collection is from an unmanned lockbox location in the main part of the city. It's about a 20 minute walk from there to the apartment. And while the hosting company was professional, the experience lacked some of the small extra touches that aren't required but that you often see. For example, the kitchen had no basic provisions like condiments, oil, or coffee.