The GR Hotel Ginzadori is in the heart of downtown. Right next to all the shopping and restaurants. A short taxi ride from the train station. The bus ride from the airport is cheap, but it's a 20 minute walk from the transportation center to the hotel.
The staff is pleasant and check in was smooth. Non-smoking twin rooms are very rare in Japan. Out of desperation I booked a smoking twin room, and that's what I got. Other than the smell of smoke and the smell getting into our clothes, the room was clean and all of the amenities (wifi, tv, ac, bath) were as expected. I'd happily book again, if they had non-smoking rooms.