In fairness to the future guests, these are the things I wish I knew before booking here.
1) We could not use the "locker" to leave our luggage in. Someone else was using it. We took an early train from Munich to take advantage of the whole day, knowing that I would have a safe place to leave our luggage. That was not the case. I think the information is inaccurate on Mario's listing. We wasted half a day trying to find a secure place to leave our luggage until the apartment was ready in the late afternoon.
2) This place needs maintenance. A light bulb was out, no shower curtain (literally the water comes out to the bathroom floor when you're trying to take a shower), no microwave.
3) This is listed as a 6 person apartment. The sofa bed has no mattress, so unless people are ok sleeping on the floor, you need to consider that.
4) Good Location, accessible from the main train station. Good value for the money but needs more attention from the host to manage his 71 properties.