We have had a very pleasent stay for four days at Leos place.
Despite of the size of Barcelona (and lots of traffic day and night) we experienced Leos sunny room very quiet.
You share bathroom and the small kitchen with other guests, but we had no troubles at all with sharing.
Leo is very used to guide and give informations to his visitors, and it seems obviously, that he is a popular host.
We will definetely recommend Leos "Sunny Room" - and would love to come back again!
Barcelona is an awesome city!
Best regards Gurli and Brian, Denmark