All our guests stay in suites . . . not kennels. Floors are faux stone with in-floor, hot water heat. The walls are plaster texture on three sides. The front is a custom gate so they can see the dogs across the hall. The ceilings are 9 ft. high and there are windows in many of the suites. The lighting is incandescent because I don't believe that fluorescent lighting is calming or soothing for dogs or people.
In addition, there is music piped in 24 hours per day . . . classical . . . blues . . . Jazz. Our guests sleep on wrought-iron bed frames with upholstered beds. They are welcome to bring anything they want from home to add to their suite and make them more comfortable.
The sizes of the suites range from 5' x 5' to 5' x 12', all with 9 ft. ceilings, and we have family suites for multiple-dog families to stay together.