We had the room with outdoor hot spring bath. Our room was very close to the train track so it can be quite noise, but it didn't affect us too much. The outdoor onsen was very nice and we saw the fireworks from our room (special thing the town organised for a couple of weeks). The room was spacious and we liked it very much.
The front staffs are mostly foreigners which was a little strange, especially when the hotel is supposed to be an old style onsen.
Meals were good, given that we were eating in the private room, I was hoping that the kaiseiki dinner won't be served altogether. Even if the hotel didn't have enough staffs to serve it course by course, perhaps they can at least separate the starters (cold dishes mainly), and the hot mains, because by the time we started eating them, they got a bit cold already.
And again, the staff who served us wasn't local. I'd have appreciated it, if the lady provided us with some explanations of the food, like the order of the food or how we are supposed to eat them. So the whole experience felt a little strange.
So overall, won't consider to stay there again and will try a different one if we go back to Gero.