If you choose to stay at a 4-star hotel in Detroit, you'll usually find lots of amenities to ensure you're relaxed, such as a restaurant, gym and pool. You can experience excellent service and upmarket surroundings. Opt for a 5-star hotel and you'll have access to a few extra perks — think around-the-clock concierge, on-site spas and opulent turndown services. You'll most likely get more amenities and first-class services at a 5-star retreat, though both are great options for luxury guests.