Mercedes is an amazing host. From day one she was welcoming and helpful in every way possible. She would greet you in the morning with a quick breakfast, and could plan out your entire day if you didn't know where to start. She had maps and routes that would allow you to see everything you wanted to or if you just wanted to roam around, she told you where you could do that and get a good meal at the same time.
Her place has an amazing view so there are STAIRS. If there was anything that got old quick, it was climbing those guys, but at the same time, you had to get your exercise in so you could enjoy all the tapas. She has a beautiful view of the courtyard and a pretty good view of everything around her.
Barcelona was extremely fun and was made that much more special by having Mercedes as our host.