The principal difference between a 3- and 4-star hotel in Kostrovo will be the standard of service and access to creature comforts. Three-star hotels are typically more affordable and offer the amenities and services required to ensure your comfort, such as WiFi, breakfast and a gym. You can look forward to a little more at a 4-star hotel — think upscale furnishings, luxury toiletries and extra touches like on-site spas.