Quick summary: Roger is an excellent host, and the apartment is very nice and very conveniently located. I Highly recommend it!
Some details: Roger waited for us in the apartment to provide us with several sets of keys and give us a quick tour. He also responded unfailingly to several requests when later we had questions, like how to turn the TV on, use the washer, etc.etc. He was very nice. The apartment is well equipped with all sorts of kitchen utensils, appliances, TV, wi-fi ( which was a crucial convenience for us), 2 air conditioners, a number of small appliances... There were 4 of us: one couple and 2 friends, and we never felt cramped. On several occasions, we couldn't even find each other, because there are many spaces - living room , kitchen, balcony, and 3 bedrooms, so there was room to spread when we were all at home. The building itself is nice, clean, and quiet. Metro Poble Sec is literally by the front door. But if you also like to walk through great cities, like I do, everything is within a short pleasant walk. Some of the best parks, hot spots, museums, attractions, train stations are within a 10-15 min walk. Also, several supermarkets and a great deal of all kinds of stores and eateries are in the immediate neighborhood. We spent 13 nights there and if I go to Barcelona again, this will be my place to stay. One more thing: there was plenty of closet space, even though I occupied the smallest of the 3 bedrooms.