If you decide to book a stay at a 4-star hotel in Bremen, you'll usually find lots of conveniences to make sure you're comfortable, such as a gym, restaurant and pool. You can enjoy excellent service and upmarket surroundings. Pick a 5-star hotel and you'll get a few more perks — think around-the-clock concierge, on-site spas and nightly turndown services. You're likely to get more amenities and premium services at a 5-star getaway, but both are superb options for luxury guests.