Stayed for 8 nights, mostly for Primavera Festival - I met Jana on the first night but she was away on holiday for the rest of the week. She explained everything about her place clearly, communicated everything I needed to know well and offered to get in contact if I needed throughout the week via WhatsApp. Her place is very comfortable, with a nice terrace to sit out on in the day, and I felt like I had everything that I needed there to enjoy my week :)
The area she's in, Gracia, is a lovely part of Barcelona (slightly north of centre), with lots of nice little restaurants, cafes and shops dotted about, and is less hectic than the centre. If you want to get to the centre, it's either a nice long walk or very quickly accessed via the local Metro station, Fontana, which is only a 7 minute walk from her place.
I'd highly recommend Jana's place if you are visiting Barcelona. I felt like it was well worth the cost. Thanks again, Jana! :)