If you decide to vacation at a 4-star hotel in Koshikawa, you'll usually find lots of amenities to ensure you're comfortable, such as a restaurant, pool and gym. You can experience top-quality service and upmarket surroundings. Opt for a 5-star hotel and you'll get a few more bells and whistles — think concierge assistance, on-site spas and nightly turndown services. You'll most likely get more amenities and premium services at a 5-star getaway, though both are great options for luxury guests.