Pros:
Good email communication
Free shuttle service from train station
Food and onsen very nice
Japanese style room very beautiful and comfortable
Two staff - the lady who escorted me to my room and the gentleman who greeted at meal times - absolutely lovely
Cons:
No one on the staff speak English.
Very confusing for a first time visitor as to etiquette, using the onsen, and the food.
Nothing to see or do in the town unless you have a car to go further afield.
Emailed in advance about a shellfish allergy but was still served it. Managed to spot it and used google translate to explain to the waitress, and the explained to receptionist as well. Very stressful!
Very intimidating environment for a solo female traveller, especially with limited Japanese!
Hotel information booklet only has partial English explanations.
What was meant to be a relaxing end to my visit to Japan became a very stressful couple of days instead. I visited Karatsu for my last night after this - I'd recommend going there instead!