Brunfels Hotel, in the Unbound Collection by Hyatt in Mainz

Nice Hotel and Staff, good location. Only complaint is that the room was very hot. During the winter months, the heat is on. The windows only open slightly so there isn't any fresh air circulating through the room. They offer fans but it still made sleeping uncomfortable.

It is not fair to expect high service Standards in Germany. Service is not in their culture guide. Front office was good but not friendly at all. They try to give you a goodie bag up on arrival as a nice gesture to the hotel guest. Hotel is dark indoor and outdoor.
I checked in my room that has limited TV Channels, may be only one English channel. which is a poor feature in a Hilton Hotel.
I did not like that American Flag is not outside the Hotel.
I am not sure but the hotel heating system is not working in the rooms. It is working good in the corridor but not inside the room , regardless you turn the ac to heat or not .
Breakfast was poor , a breakfast of Hampton inn hotel not a Hilton hotel.
Finally I am not sure how Hilton chain accept to open a Hilton Hotel in an alley , Hotel is not located in a main street, it is an alley.
Rooms was very old and outdated.

We just came from long journey and tired.
Waited for 30mnts for check in with only 1 receptionist.
Once we got into the room, its very old.
Thin pillow.
Stain in carpet and sofa.
They really need to keep up.

Despite all of those, its in good location.
Warm ambience and nice customer service