I stayed here for 3 nights. The hotel is just across the road from Hakata train/subway station, thus perfect for getting around Fukuoka. There is an underground mall beneath the hotel (Sun Plaza) which connects to the subway, and which has several restaurants including Ichiran (ramen).
The room was small but adequate. The only thing which detracted from the experience was the pillows, which were flat, firm and uncomfortable. The bed itself was fine though. Shower was great.
Breakfast was adequate. The front desk staff were polite and attentive (I spoke with them in Japanese though). Strangely, we had to hand our room key to the front desk every time we left the hotel.