The main difference between a 3- and 4-star hotel in Itoizawa will be the level of service and access to creature comforts. Three-star hotels are generally more wallet-friendly and provide the conveniences and services required to be comfortable, such as a gym, WiFi and breakfast. You can expect a bit more at a 4-star hotel — think upmarket furnishings, deluxe toiletries and extra touches like on-site spas.