Staying at Kees house was great! We were 5 friends and there was plenty of room and beds. We borrowed the bikes from shop that is only a couple of minutes away. The bike drive is about 20min to the center if you use the ferry (which is free and even drives at night - if you want to go partying). Before you arrive Kees also sends you a file with all kinds of useful information from house rules to buses and stores. I would recommend staying here.