You can expect delicious cakes and definitely good coffee here. There's a beer garden and ample parking for cars and bicycles (with power outlets for charging e-bikes). Unfortunately, the barn is open Thursday through Sunday (due to the well-known shortage of skilled workers 🙁 ...), which unfortunately didn't suit me.
The coffee barn is directly opposite the Alberssee car park near the Lippstadt Lake District and also houses the registration office for the campsite there. We stopped there on the way back from the stork village of Verlar. You can sit outside and enjoy cake etc. in a very nice and relaxed atmosphere.