We spent an AWESOME weekend in Jens's Houseboat! It's really a great location for a group of friends : the fact that you can start your day by jumping in the water from your own deck, that you can discover Copenhagen riding the bikes he gracefully provides and end the day with a barbecue on the terrace is everything that we hoped for - and even more.
Located 20 minutes by bus/bike from the city center it's an ideal spot for a quiet getaway. He and his wife were helpful and readily available in case we needed anything - and always with a smile.
I warmly recommend spending some time at his place and looking forward to come back!