I know there are Bears out there with more insight to offer, but I've skied a couple of days at Monarch...
It's small, it's honest, the lift ticket is pretty cheap and the lodge down the road follows suit. I like Monarch, it's a great place to stop for half a day as you're traversing the state.
As far as difficulty of runs.... what kind of runs/terrain do you typically ski at Copper or WP? I guess I'd say it's closer to a small Copper than a small WP. There are some decent cruisers and some steeper runs off the top of the Panorama lift that bump up a bit. If you don't mind some easy hiking and a long runout back to the lift, there's pretty good bowl and tree skiing to the far skier's left of the mountain.
It's a place that you can pretty much feel like you've seen it all after an hour of exploring.... but keep looking, it does have some adventure lurking in hidden places