We flew out of Philly on US Air last year. Being a first-time flyer, I didn't know what to expect and have nothing to compare (yet), but I can say we had no problems at all...the airport was a breeze to get through, and once we got going the flight was quick and comfortable. I hope it's that easy every time.

Mike- we also used flight 859 and checked the status on a regular basis. Like you said, always on time or ahead of schedule, except for our travel day. About an hour delay. Hmmm...