I have golfed at quite a few courses here in Colorado and across the nation, and think that the Cherry Creek CC is right on par with what they offer.
Yes membership seems steep, but compared to courses in Chicago or New York with membership dues well into the six-figure range, CCCC seems about average for what you get.
I have had the privilege of golfing with my buddies who are members, and haven't really experienced the fitness center or the pool, although from what I could see, they seemed fine. The course itself is also actually quite nice, and can be challenging at times through some of the water holes. The other golfers we met on the course were very nice and accommodating.
The clubhouse and their restaurant is also comparable to what you would expect. *Reminder, there is a dress code while in the clubhouse or restaurant - so keep that in mind when you feel the urge to mosey on in. While the food isn't knock-my-socks-off-spectacular, it's usually pretty appetizing after a round of 18. Between my entrees I have ordered in the past, I would say that my favorite would be their prime steak sandwich which contains a red wine reduction with mushrooms, crispy onions, and a nice horseradish sauce on top of some killer bread.
All-in-all, I think that the CCCC is fair and is about average to what I've experienced in terms of public and private courses here in Colorado.