Sindyr, samuel, I agree completely with the both of you. CoX was not perfect, far from it, but for my money it did what it did better than any other game out there.
I started playing CoX before issue 5 came out, and the game was indeed a lot more difficult in the early days than it was when it ended. A lot of factors came into that, and it wasn't just things like the adjustments to the level-curve, IO's and the like, but those QoL improvements that sindyr touched on: things like temp travel powers, the adjustment to allow travel powers before level 14, and the addition of things like Ninja-Run. Stuff like that meant I no longer had to use hover to cross Grendel's Gulch. Granted, that was a good time to go get a sandwich and a soda, but it got tiresome after a while.
I'm a casual gamer. Sometimes I would log onto CoX 5-6 days out of the week and play for hours on the weekends. Other times I'd slip in an hour here and there, and at other times I went weeks without playing at all. I loved the fact that I wasn't getting the short end of the stick for the times I couldn't play much, and the QoL improvements allowed me to more efficiently use my time on the game to have the most fun I could manage.
My first 50 was a Blaster, and while he didn't face-plant as much as some other Blasters I knew, he did it often enough to be occasionally frustrating. Coversely, the final new character I made and intended to get to 50 before shutdown, ILLYRIA, became my cherished favorite. She was a Street Justice/Invul Brute, and by the time the game wrapped, she had become a very tough nut to crack in any normal in-game circumstance. She was fully slotted with IO's (though not all of them at max strength as yet), and had all of her incarnate slots filled, two of which were maxed out. She was so much FUN to play, and part of that fun hinged on the fact that she was so hard to defeat during normal game-play.
As I've said before, and as I will doubtless say again in some form: I didn't play CoH to be slightly-above-average guy (or girl), I played CoH to be a Super-Hero, one who could leap tall-buildings and quickly send foes packing. That's exactly the kind of experience I want out of any spiritual successor to CoX.