Have almost finished my 4-night stay at Hotel Active, and have generally enjoyed it.
The hotel is well-located in the CBD and near a tram stop (kaneyama-machi); taxi drivers are also familiar with the hotel.
Loby is stylish, staff are polite and accommodating, and there is free internet in the business centre and also in the room if you bring your laptop. Complimentary breakfast is great but only served between 7-9am. As this hotel caters mostly to business travellers I guess that's fine, but I love to sleep in when on holiday so only have been able to partake once.
There is also a Japanese bath on the ground floor; separate bathing times for women and men. The water is contains theraputic calcium and other minerals. I really enjoyed this, very relaxing.
The only misgiving about this hotel that I have is the room size. I live in Japan and so am accustomed to making the most out of small spaces, but this could possibly be the smallest hotel room I have stayed in in Japan. If you plan to just sleep in your room, perhaps you won't mind this hotel. But if you plan to spend any decent time in the room, it may get to you. I had to repack my suitcase and nearly went nuts from the lack of space. If you need more space and have the budget, I recommend Hotel Sunroute near the Peace Park; it's one of the roomier non-five star hotels I've encountered in this region.
All in all, for 7,500yen a night ("double" room), it's good value, especially with the included breakfast (if you can surface in time). Just don't come here if you have space issues!