My wife and I have been traveling to Barcellona with 3 kids (9-11-13 years old). The house is a great place to start the city visit from. Walking distance from the Sagrada Família, markets, shop and some great tapas places we had the pleasure to try, under the great advices of our host. Everything as planned and even better. The feeling we have had was exactly the one of having a house away, in Barcelona.
Communication was perfect and Fred has done things that no host would have ever done for us.
I wish her and her family the best, hard to find nice people like you guys!
Thanx.