First off, this isn't a Fairmont, and Copperstone Resort can't compete with that level of features. But it really doesn't have to.
Copperstone manages to pack in a number of features for a palatable price tag. The four lodges center around an outdoor hot tub and two communal barbecues. The grounds are decorated effectively and naturally. Below the cabins lie underground parking and utilitarian parking lockers (though I find the security of the latter suspect).
The rooms are very reasonably sized, feature two TVs, wireless, balcony, and decent beds. On the downside, the fireplace was disappointing - it doesn't give off any heat, similar to watching the fireplace TV channel. This is clearly set up as a self-cater environment, and you'll find a lot of cutlery and basic equipment to work with. Service was always pleasant and knowledgable.
In terms of location, Copperstone is 10 minutes outside the park proper. This is really a great place to stay. Don't let the name "Dead Man's Flats" discourage you!