I'm currently riding my NWT from Phoenix Az to Canada, at the moment in a hotel near Zion park in Utah. The NWT rides great, but it has some disadvantages. The ride is more harsh over bumps and I don't feel confident riding at high speed, 25 or more mph. I put on a Pantour suspension hub, a softride suspension stem, and a suspension seatpost, and finally it's smooth enough for me on dirt roads. And my cycle partner doesn't like fast decents, so the bike is working fine for me.
In the future i'm going to use the NWT for shorter tours and a 26" tourer for longer expeditions.