I stayed here for a conference, which was located at the nearby Kitakyushu International Conference Center. The cost for a room-night was amazingly low, close to $110/night including breakfast (estern and Japanese style).The staff were as helpful as possible and the usual Japanese over-service was evident. I did not dine in Naniwa, the main restaurant just off the lobby, but I did test both the Sky Lounge (beautiful views of the city) and The Cellar Bar (an excellent selection of whiskeys from around the world).
The best part, of course, is that the hotel is just across the street from Kokura Station--the main station for Kitakyushu City, which also is the final destination for express buses from Fukuoka Airport (about $12 one way compared to a two-leg rail trip that is $21). On just the other side of the station is the heart of the City's commercial district where shops and restaurants abound. Kokura Castle and Riverwalk Kitakyūshū (an upscale shopping mall) are just blocks away too,
The only downside of the hotel, which I could observe, is it is clearly a prime wedding venue for locals. The hotels even has its own bridal shop,