The big difference between a 3- and 4-star hotel in Jena is the quality of service and access to creature comforts. Three-star hotels are typically more pocket-friendly and come with the amenities and services required to be comfortable, such as a gym, WiFi and breakfast. You can look forward to a bit more at a 4-star hotel — think upmarket furnishings, deluxe toiletries and perks like on-site spa centers.