The key difference between a 3- and 4-star hotel in Kalininskaya is the level of service and availability of creature comforts. Three-star hotels are generally lower priced and include the amenities and services you need to be comfortable, such as a gym, WiFi and breakfast. You can look forward to a little more at a 4-star hotel — think upscale interiors, luxury bathroom products and perks like on-site day spas.