I can't be impressed because it was vs. bots.
bots can be dangerous in team fights, they're programmed to lose lane, but if you walk up to them 1v5 they'll unload on you like irritable bowels, happened to me twice
though it's not really about how hard it was, just the fact that there are an uneven amount of bots on the rift in coop vs ai
I guess it really depends on your personal experience level with the game.
I've only been around for a season on and off, I mainly here to study