Andrei was very friendly. He answered quickly on e-mails, provided good guide about Barcelona. The flat appeared smaller when it looks on photos but we had enough space for four people. Location was great, close to metro station (green line by that you can reach almost all Barcelona attractions like Barri Gothic, Rambla, Park Guel, Gaudi houses and Central Station). There is a lot of cafe and bars in area. Main disadvantages of the flat is fourth floor and no elevator so you get free exercises every evening (but it can be problem if you have heavy luggage).