The only disadvantage was its location. Being 20 minutes outside Hamburg, you need a car. However, we had one, and since parking was free and a 48 hour group Hamburg Card was 30ish Euros, we more than made up for the cost of transportation over parking.
We did not feel like spending a fortune to stay downtown in Hamburg. We choose this place for its price and location. We found a delightful hotel, with a great staff.
We got the Hamburg pass and parked at the park and ride and used the S-Bahn. Saved over 100 Euros a night and got a better nights sleep, in a huge room, in a quiet neighborhood 20km outside Hamburg. It took us 30 minutes to get in / out and it was perfect.
Wifi was great. Minibar was affordable. The room size was so large, we could have played football in it. The bathroom was huge too.
I would highly recommend this hotel again.