Stayed in Kees' apartment for five days with my friend - it was perfect for us. The apartment is extremely well-spaced and perfectly clean! It wasn't Kees, but his local Spanish friend Anita who welcomed us. She only speaks Spanish, but is very very kind! Communication with Kees is also great, if I ever come back to Barcelona I will definitely consider staying here again! I can warmly recommend this apartment. Perfect for 2 people, but I would reckon it also fits 4 people well. I was a bit worried about the neighbourhood, but don't worry it's safe and a very authentic area to stay in (not so many tourists :) ). PS. Go to the beach, it's awesome!