We stayed at a semi double room. The size is understandably smaller but acceptable. The room and the bed is actually a bit bigger than other semi double rooms i have stayed in Japan. The bed is comfortable and the bathroom/shower is my fav.
The reception staff speak very good English. One of the staff, I think her name is Kristine, was very helpful. She helped us made perfect arrangement for onsen and dinner.

Standard business hotel room size. Very sleek interior design. Excellent bathroom (with glass shower stall only) - not the standard modular bathroom, Located right next to station underground exit P6 with elevator access inside the Hakata Shin Mitsui Building. Breakfast is essentially continental, hard-boiled eggs, plus 2 choices of "western" soup.

New Hotel central located at Hakata Station -only two stations to the airport
Nice and modern design, rooms are not large but OK, good shower and amenties.
Internet inclusive..
Breakfast offer is recommendable, good quality and availability.
Service is verx polite like everywhere in Japan.
Very close to metro.