Environment: Arima Onsen has a nice environment. Since it's primarily a carbonated spring, there's no rotten egg smell like sulfur. The town is easy to explore and well-developed commercially.
Cleanliness: Although we booked a traditional Japanese onsen ryokan (traditional Japanese inn), we requested a twin room. The room was quite large, very clean and tidy, and we didn't have to worry about not being able to unpack our luggage or having limited space to walk around.
Service: The service was truly exceptional. They provided shuttle service throughout our stay and even delivered our luggage. When we needed to take the cable car to the top of Rokko Mountain, they also provided transportation. They were very helpful in answering our questions about attractions.
Facilities: Kotori is a very small onsen ryokan with only 8 rooms. So, although the rooms aren't small overall, there's no bathroom or toilet in the rooms. We knew beforehand that there wouldn't be a toilet in the rooms, but after checking in, we definitely felt the inconvenience. Breakfast was eaten in the ryokan lounge, and dinner was at a sister ryokan, a 3-minute walk away, where the facilities were much more luxurious.
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