We had a fantastic stay at Francesc's place which was very conveniently located. It was easy to walk to the different neighborhoods and was located in the heart of the main shopping street off Passeig de Gracia and the train stations were also super close for any further visits during your stay. There is also a car rental (Sixt) station that is about 2 blocks away which was also convenient for our next Spain city destination and I was able to rent a car and park it in front (on the main 'inner road' in the morning with my hazard lights on).
We liked the patio table area and had our coffee and drinks in the morning and evenings (it was a little oasis in the city). Francesc was also very communicative and responsive in preparation prior to the trip. He was also quick to respond to questions that I had during the stay. The place was nicely decorated however it did appear slightly smaller than the pictures but that is expected in the city of Barcelona. The temperature and heat control for us (Nov visit) worked well.
For those traveling here that do have a sensitivity to smells, I would also note that the scents were slightly strong. My suggestion is to unplug the scented devices when you walk in to 'air' out the scents.
Make sure that you arrange your check-in arrangements prior to landing (especially from outside of Europe) and you can leverage WhatsApp to communicate (I unfortunately missed some messages while I was in the air and didn't know where to meet once we landed). Another suggestion is to send a picture of you or your group so that you can recognize each other easily.
Also google translate is your friend (if your Spanish is a little rusty like myself) as we did struggle slightly with some of the communication initially but we were able to get through it after looking up some phrases.
Thanks Francesc for a lovely stay in Barcelona!