Great stay, I recommend! Room is indeed cozy small yet smartly decorated which makes it feel fun, vibrant, and big enough for a nice short stay. The best part is the hosts. They helped out an amazing amount and made it a really comfortable stay (incl comfy bed, nice shower, clean and tidy appartment).
One thing: take earplugs with you if you're a bit sound sensitive. The waterpipes run through the room so with every use you hear them quite clearly.
Location: busy road. But! Just a small walk of a few minutes towards Jardins de Salvador Espru (carre de la riera de sant miquel) theres a lot of nice Coffee and food places to enjoy. Good atmosphere!