Just gotta say, I absolutely hate the Colosseum

I really don't mind the coliseum as a replacement for the old marquee system.

It's even a little challenge trying to get the best score you can, in the 5 attempts that it gives you per day, and that forces you to learn the new toon abilities, as opposed to the old system where you'd just auto through the marquee, forget about the toon, and then in a few months when it's 7 stars and relic, have no clue how to use it.

Would I spend money or crystals on any of it? Not a chance. I'm up to levels 31-31-29 F2P now and not stressing over it at all.