Area could be pretty busy in the night, no place to park outside, you will have to use the paid parking if space is still available.
During Christmas/Year times (from 25/12 to 6/1), hotel was closing after 11PM nobody to speak with and/or to activate the internet account until the next morning.
Double bed is actually 2 single beds closed to each other which is a little bit difficult to manage for couples.
That is all what I didn't like, but they were not major issues as could be managed easily.
Polite, nice and very helpful staff. Although, paid parking is available in their basement, there is also free parking around. Service is awesome, clean hotel, peaceful and quiet area, highly advisable for people who like quietness and would like to stay for short time in Heilbronn, perfect value for money. Near to main streets of Heilbronn, close somehow to shops and main outlets of the city.