The place is big enough for 2 people, both for a short and for a long trip. The internet speed is more than enough for you if you are planning to work from Sabine's place (like I was).
As for the touristic aspect, the place is definitely close enough to the city center (within 15 minutes).
Sabine herself is a great host, very kind and considerate.
Checking in and out of the place is seamless. No matter how early or late you check in or out, it can be done simply by following very simple and clear instructions.
Overall, a great place hosted by a great host.