We are very familiar with Copper Mountain and Passage Point in particular. We enjoyed the location.
Pros: We utilized the laundry (credit card operated). We also used the fitness room and hot tubs. (These are fantastic, btw.) Beds were ok and space was sufficient. The check-in was super easy. We utilized one parking space in the basement parking garage and one in the overflow lot at Alpine Valley ($20/night). All good there. The beds slept well.
Cons: The fireplace never worked :(. There was only one couch and one chair for seating in family room. We lost electricity one morning but the management addressed it promptly. The largest frustration was the hot/cold water. In the kitchen, we needed to run it for a bit to get cold or hot water, the shower in the guest bathroom worked ok, but not much pressure. The master bedroom sinks were low pressure. The master bath tub when half full was lukewarm when filling 100% with hot. However, you could get out of cold tub and jump in a very nice shower with great pressure. So if you want a warm soak, head to the hot tubs.
All-in-all, a bit disappointed as the stay was double normal prices likely due to the holiday weekend; sometimes you just take a hit to make a family weekend work.