Flew from DEN to PHX and connected on several different trips to SFO, LAX, and SAN. Even got to go in first class once on an A320 DEN-PHX. . .nothing to shout about though. Well, I did have a couple of "morning drinks" and more-than-I-can-eat muffins, breads, fruit, yogurt, coffee and pastries. The 1st Class FA wound up sitting next to me showing me pictures of her recent safari trip in South Africa (via South African Airways). Yes, that was pre 9-11.
I've been on several of their 732s, 733s, 752s, and A320s. Never had a problem on any of their flights. I love connecting through PHX. The Pheonix area is very colorful with the desert, the mini-mountains, the America West Arena, BOB (Bank One Ballpark). . .what a monster. . ., both skylines, and even the "welcoming' art at the end of the runways.
Now, you are flying into DCA. . .that is a whole other story. I love that place, especially when I use to land in those old ATA 727s. . .the hard braking, wow!
Always keep your nose to the window, DIA
Ding! You are now free to keep supporting Frontier.