I stayed here only for 2 days, for a working meeting at the nearby Technolac science&business park, and I really loved it and sure would have liked to stay longer!
I had been a bit weary due to some bad reviews here, and because the booking and telephone contact proved rather difficult (no reply on my online reservation request. So better call by phone for a reservation - only Mondays the attached restaurant is closed, and there may be nobody in the house, so try again when the machine answers your call).
That's because it is in fact just a small family run hotel, without a real reception desk that is always occupied. So don't expect the kind of perfect service you expect from big hotel chains.
Nevertheless it was clean, the room was properly made up, and the service at breakfast was friendly and good.
The rooms may seem a bit small, but the decor with handmade wall paintings gives them an atmosphere you never get in a standard hotel. It may look old-fashioned and remote, but the free WiFi (for which you pay in many business hotels a lot extra) connects you fast and reliably to the world.
And the view from the room, with the sound of the ducks the only thing you hear, would make up for many an imperfection anyway!
Just make sure you get one of the 6 rooms facing the lake when you make a reservation !!