As whiterabbit said, our family has been in Fort Worth for many, many years. Far more than 100, actually. My great-grandfather and his brother came to Fort Worth in the latter part of the 19th century, where my great-grandfather rode the Chisholm Trail and his brother rode the Pony Express from Fort Worth to Weatherford (so we could probably date it by the years the Pony Express ran that route), so the family was there nearly in the beginning.
So I’ve been going there all my life, and would dearly love to actually live there. Mind you, I probably know Fort Worth the way it used to be almost better than the way it is simply because of all my childhood experiences there, but I’ve been back often enough as an adult to know my way around pretty well and love the place.
FW is much more laid back than Dallas. Housing prices are frighteningly reasonable after the DC area (and I should know; we lived in DC from '98 to 2001). If you do end up moving to FW and want to buy a house, drop me an email; my cousin, another lifetime resident there, has been a realtor for years and will be a great resource. (She’s very actively involved in community affairs, including currently sitting on the FW Historical Commission, so she knows the city backwards and forwards.)
Traffic will never, ever, ever be like it was in DC. Bad tie-ups briefly, yes; rush hour lasting 4+ hours, no. You can spend millions on a house, or get a very nice place very reasonably.
There’s lots to see and do; lots of good restaurants and museums; and to my complete and utter shock (considering that I live in New Orleans now, and never thought of Fort Worth as its equal in sin), saw a sign for a drive-through daiquiri stand when I was there recently!
The weather gets very hot indeed, but I guess the “muggy” part depends on where you’re from. It feels very, very dry to me now (but comparing it to New Orleans probably isn’t a fair comparison). The good news is that there’s always a breeze, which means that even when it’s hot it’s not stifling. And everything is air conditioned.
I’d move to Fort Worth in a heartbeat if I could. In fact, Papa Tiger got laid off recently and is applying for jobs all over the place, and I’m pulling for him to get the one in Fort Worth he applied for!