All the Hotels were booked in Friedrichshafen so I stayed at this place instead. It is across the street from the bus stop so getting into central Friedrichshafen or the nearby airport is very easy and cheap. There are very few taxis but they can be called from the Hotel. The Hotel is very clean. The stall is helpful. Parking is free on site. The restaurant is passable but not gourmet. The rooms are spacious. The ambiance of the Hotel is very pleasant.
i got a rate of only 65 Euros for a single room- a real bargain!
The Chinese restaurant across the street is not very good, but is very cheap. Less then 5 Euros for a meal!

I was stationed in Germany for 2 years and I've been to many cities and hotels.
The Hotel Rad (indeed all of Friedrichshafen and area!), even after all this time, still sticks out in my mind as the best example of German hospitality.
To give a quick background, I arrived in Friedrichshafen intending to see the Zeppelin Museum. Unfortunately, all the hotels in the whole city were booked. I was told to take a taxi to Tettnang and try the Hotel Rad.
My taxi driver took me to the hotel and went in with me to make sure I was able to get a room. He also offered to take me back to town free of charge. So I checked in as fast as I could, got my key and ran upstairs to my room. Well, I couldn't get the door open for some reason, so I ran back downstairs and told the lady at the front desk. She knew the taxi driver was waiting for me so she took my bags and assured me she'd deliver them to the room and get the door opened. Because of her I was able to get my free ride back into town.
Sounds like a small thing, but Germany in general is not a land of customer service.

As for the hotel itself, I had a room at the top of the hotel, so the ceiling was slanted. I remember how HUGE the room was. There were two beds in it--of course I only needed one.
Like every German hotel I've been to, the rooms and bathroom were immaculate.

The hotel is out of the way if you're going to see Friedrichshafen and the Lake, but there was a bus stop near the hotel and an excellent Oriental restaurant in the area. If I ever went back to this area, I would definitely make a point of staying at the Hotel Rad.