I can't run modules. It would be a huge timesaver, but my players even smell boxed text... and they immediately do everything they can to derail the adventure. Don't get me wrong, they generally try and derail even my much more loosely planned usual "outline" of an adventure too. But with those it is easy for me to get them on the path I want them to take. A module is like a railroad, they just have to go along with the ride. My usual style is like surface streets. They can go whatever way they want, but I can close roads or make detours that take them where I want to go while giving them the illusion of choice. They know I'm doing it, but they still prefer it to just playing through a module.