The entrance of the hotel might be a little difficult to people who drive to there because the entrance lane is really narrow and small. If you drive there, do not arrive before sunset or it's totally dark during the lane.
Guest rooms are pet friendly therefore it might remain some smells of pets (for people who dislike animals), you should consider it carefully or you might be uncomfortable all the night even though it smells not too strong.
Dinner and breakfast are great, the buffet is offered both breakfast and dinner, you could enjoy meals here. But after you checked in, it's really impossible to go outside of the hotel because the entrance is difficult to pass.
All the rooms are with 2 onsens, one is indoor another is outdoor, they are really awesome.
In conclusion, I would recommend you to stay here if you love pets and enjoy onsen, otherwise you might have a better choice.