Excellent service from the moment you get out of your car (the staff is waiting for you to help you with the luggage). The staff is friendly and professional.
You can either visit the place for lunch and hot spring or stay overnight. Females can choose a Yukata of your choice. You'll receive a separate Yukata for going to the spa and another as a pajama. There are bath towels, medium-size towels to take home, free socks to take home. Most amenities you'd need like tooth brush, shampoo, conditioner, body soap, face lotion, body lotion, etc. are available
My mother and I stayed in Yama Akari.
The room was spacious enough for two (might be too crowded for 4). We loved the in-room hot spring.
The dinner was Michelin level with artistic details. The only complaint is that the reading room closes by 10pm and you have to call the front desk if you want to use it.
Overall definitely worth the price.