M-F stay. Staff was very kind and helpful. Good English and an easy check in. If you are coming as a tourist, they give you the Gäste Karte for easy public transport. Close walk from the baiersbronn bf, and right next to a bus station. Very close to hiking. Grocery store, bakery, and a few restaurants are nearby.
We had one of the slightly larger double rooms, with a private balcony facing the garden. Clean, well made up, comfy bed, electric kettle with instant coffee and teas, mini fridge (which they stock up with a couple local sodas, water, and one day, beer.). We didn't have an issue hearing other guests, other than the room next to us unlocking their door (older heavy duty locks).
Cons: a busy road can be heard nearby during the day, but we were gone most of the time, so it didn't bother us, but mentioning in case someone is looking for a very quiet, remote place. No air conditioning, but that is very typical for older German buildings. It is cool enough during the day and night to simply have your windows open or cracked. Wifi would sometimes cut in and out, but I was still able to stream videos and take one of my online classes with little lagging.
I highly recommend Hotel Petra for the value and kind owners! If you are looking for a clean,cozy place to relax and sleep after a day of hiking or exploring, this is great. They also serve breakfast.