This might not be something against the hotel, but probably against the navi. Finding the hotel took a while as the street number was missing in our navigation system, and the street numbering is not quite obvious. But we eventually got there after a few enquiries. In the hopes that this might be helpful to someone: If you are driving to this location, take the exit "Neuberg" and drive about 1 and half or two kilometers in. You will see several guest houses. Take the exit which goes uphill (if I remember right, 2nd left near all the guest houses) and you will find the hotel to the left. Wifi kept breaking quite often and sometimes even wouldn't connect for quite a while.
One of the best stays we had in our vacations. Maria and Wolfgang are great hosts. They took great care of us and helped us plan each of our days providing any tips. We felt like we were with our family :) A very picturesque location. Nice breakfast. I highly recommend this hotel. Trust me, you will not repent your decision.