Really enjoyed the location of the Hotel Schlüssel in the old town area of Luzern. Everything is within a 5 to 10 minute walk, and it is just enough off the beaten path to be away from the noisy crowds in other parts of town. There is also a pay laundromat just a street over which was very convenient and we made use of during our stay.
There is no onsite staff, giving it more of the feel of a personal rental. This was never really an issue for us other than requesting two room keys at check in and only being able to make one. As an aside, i made another later the first day which worked, but then the original no longer functioned.
We really appreciated the fan in the room for our use, which allowed us to keep it comfortable during our 4 day stay even with moderate heat during the day. During the night we also kept the window open with the fan on to bring in cool air but the proximity to the church next door and the bells which peal every 15 minutes all night long made this not a good of an idea. Having the window closed really made this a non issue for sleeping and there is definitely a pleasant historical vibe to their consistency.
Loved staying in the city for it's charm and location, and the Hotel Schlüssel just added to the overall enjoyment of our visit.