I can't praise Jonathan and Jordi enough. They are the friendliest, most easy going hosts I've ever had and they have an incredibly beautiful home.
We arrived at night during a taxi strike, after the metro had closed, and they helped us navigate the night bus system and even waited for us at the final bus stop to help us with our luggage at 2:30 in the morning (middle of the night). Their home is beautiful and modern, with a beautiful view from the terrace. They had brochures for activities throughout the city in the room for us, along with water and some small chocolates. They are incredibly hospitable and make great conversation.
We would recommend Jonathan and Jordi to everyone and would definitely stay with them again if we come back to Barcelona!