The main difference between a 3- and 4-star hotel in Aragon will be the quality of service and access to creature comforts. Three-star hotels are typically more budget-friendly and include the conveniences and services you need to be comfortable, such as breakfast, WiFi and a gym. You can look forward to a little bit more at a 4-star hotel — think upscale furnishings, premium toiletries and perks like on-site day spas.