This place is in a great location - right in amongst all the great little streets with restaurants, cafes and shopping. The space was fine for 3 adults for a short visit (3 days) but it might feel restrictive with 3-4ppl there for much longer than that.
Just to note - this place is run more like a serviced apartment. This means you don’t get the nice touches you get when it’s someone’s home (and their local suggestions), but you do get a really easy self-check in, a practical apartment with nice decor, and a helpful book about using things in the apartment and practical things about the city (transport etc).