Surprised my wife with a stay here and we weren't disappointed. <3
The boat has all the basic amenities. The check-in was very smooth as Tobias explained everything clearly. They also provide a pdf so that you don't forget the steps.
On the other side of the lake, there is Treptow park and a few cafes. We went there on the paddle boat they provided. Parked the boat and explored that area too.
Highly recommend this stay.
Tip: Get whatever you might want to cook like instant noodles, and sandwiches, and please bring your own drinking water. We carried some chips and had dinner in the Biergarten nearby.