The El Born district is my favorite area of Barcelona with all it's artisan shops and narrow medieval streets, and this tiny apartment puts you right in the heart of it! The plain alley door entrance and rather dark, narrow flight of metal stairs is a little foreboding at first, but the apartment itself is clean, tidy, and just right for a week long stay.
Once I booked Marc directed me to communicate with his assistant, Sarai, and she did all communication with me via email. She set an appointment time to meet at the place for check in, and after a brief tour gave us the keys and was on her way. Direct and simple.
It isn't the most luxurious apartment I've stayed in, but the location couldn't be beat, and it was nice having a quiet place right in the middle of it all. I wouldn't hesitate to stay here again.
Note that it's three flights of stairs to the apartment, and the shower is built on a platform and a bit slippery, so not the right place for someone with mobility issues.