Very great location with a good access to public transport! Only 5 mins away from Sant Antoni Market by foot or massive Lidl (if you're on a budget).
The place itself is spotless and very cosy. Mattress and shower tick all of the boxes. Also can use the kitchen for cooking, which is a massive advantage given the quality produce at your doorstep.
As a host Andreas is very responsive, accommodating and welcoming.
Definitely would stay at this flat next trip to Barcelona!