Paula is great host - very helpful, nice and friendly. I really appreciated privacy and respect to my personal space. Apartment is very authenticate and with special aura. I was really surprised how comfortable bed was. It might be little cold during winter months at Paula's but mini-heater is available and shower can be taken in the host's bathroom, still I missed my warmer socks. Anyway I enjoined my staying in Barcelona and Paula's restaurant suggestions was great.
P.S. Tips for runners - area is very hilly. For flatter runs you can go to the beach, for jogging - park Guell.