If you decide to book a stay at a 4-star hotel in Princeton, you'll usually find plenty of amenities to make sure you're relaxed, such as a restaurant, pool and gym. You can look forward to high-quality service and upscale accommodations. Go for a 5-star hotel and you'll get a few extra bells and whistles — 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 stay, but both are great options for luxury guests.