My husband and I along with our 9 y.o. stayed here and found it to be a cosy little apartment as described. If you enjoy exercise then you won't mind the stair climb up to the top level (although Rainer does mention this in the ad). We had backpacks not suitcases so found it pretty easy to get our luggage up.
A great coffee shop catering for our allergies around the corner and a short walk to train station. Rainer was quick to reply to our queries and great communicater.