If you choose to stay at a 4-star hotel in Postville, you'll usually find loads of amenities to ensure you're relaxed, such as a restaurant, gym and pool. You can look forward to excellent service and upmarket 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 additional amenities and first-rate services at a 5-star getaway, though both are great options for luxury travelers.