Do not dread four hours at DTW! When I was a NW guy I used to look forward to my DTW layovers! Much better place to get stuck than ATL or JFK, and more amenities than SLC. The clubs at either end of the main / A concourse at DTW are smaller, quieter, and more intimate and pleasant than the big one at the center... and, um, stay out of that Chili's. Otherwise you'll have a great time.