I never flew them, but years ago received a video (VHS) 747 - A Pilot's Eye View of takeoffs, landings, inflight in a 747 cockpit. All of it was filmed on PE. I don't remember what year I got it, but I think it was just shortly after PE went under. I had vaguely remembered seeing signs for PE at an airport somewhere but knew nothing of them at the time. Sounds like an interesting experience.
I think I still have that video around the house somewhere.
I tend to agree that in some instances I wouldn't mind at all an airline like that, as long as they're upfront about the extras and the ticket price itself actually is significantly lower. It's the legacies that start to charge extras for previously free items, yet without any real decrease in the base fare, that is aggravating.