Searching HOTWIRE for Barcelona on 2/5/10-2/10/10 I came across a 4.5* hotel in Les Corts-Sants for $105 a night. Amenities are Fitness Center, Restaurant, Business Center, and Internet. No 4.5* hotels have previously been reported for this zone, but the amentities match that of the Melia Barcelona, which has been reported numerous times as a 5*, most recently in September. Searching various other dates in January and February I no longer see any 5* listings for Les Corts-Sants. So perhaps the Melia has been reclassified? If it is the Melia, it doesn't represent a huge savings compared to booking through their website (about $13 a night), so I'm holding off on it, but just wanted to alert people of the potential change.