Kaveh was a wonderful host. He has designed a very nice space which has all the amenities and done in a very stylish manner.
The place is a little tricky to access because the street it is on changes names right at the corner the apartment is on and it is on streets that are not accessible by car. You need to drop off your luggage and walk it around the corner and then find a place to park. We parked out car for four days, hardly making it worth the rental, so that's another tip from us. We wanted to be able to get around the country a bit without having to worry about train schedules, but you really don't want a car in Barcelona or Madrid.
Kaveh's place was a great place to walk from, close to Paseig de Gracia, La Rambla and all over the place. We love to walk so we did most everything from there by foot. We did use public transport (Train and Bus) which are only about a 5-10 minute walk away.
We would definitely choose this place in a minute if we were to return to Barcelona!