I've used the metro system in a few American cities and several different countries. Of the ones I've used only Korea was better overall. Some seemed to run more on time but we're incredibly dirty and vandalized. Also for the most part the DC does run in time. It's just that I use it more so the times it doesn't add up in my head. If I'm just in town for a weekend or something I might never have an issue.

I've got a bunch of issues with DC public transit but it's mostly about safety. I've seen some rowdy behavior on buses and trains.