A must-see for anyone who likes coasters.  No, it doesn’t have the variety of a Six Flags Park, but not being surrounded by concrete and steel was pretty nice.  It's small, and has the feel of a mom-and-pop operation, but every employee we encountered was kind, friendly, and went above and beyond to help us out.  Also, the new Defiance coaster is definitely not a "mom-and-pop" experience.  My daughter and I forced ourselves to go on it once in the back, then decided we had to do the front.  It is really something riding a gravity defying coaster with nothing but the track and views of the valley below as you rush down a vertical track and then the subsequent rolls.  Very short ride, but well worth it!  Sadly, the Cliffhanger coaster was shut down due to wet tracks, but the Alpine Coaster made up for it.  It's "just" a set of tracks right above the ground that runs down the hill, but getting to control the speed by myself on my own little "sled" was a blast.  And it's so long!  The first ride, every time I thought that surely I must have reached the bottom, there was another curve.  I'd visit again for this ride alone.

If you are large or have long legs, the Soaring Eagle zip ride might feel a little insubstantial.... I wish the seat had been a little deeper, that I could've scooted my rear farther back, and I'm only 5'8". My daughter and I thought once was enough.  Probably a blast for adventurous kids.

The Canyon Flyer, our first ride (intermittent morning showers were delaying some rides) was a real adrenaline rush, too.  It's perched on the edge of a steep hill, you're in a little swing, and then it's swinging out over the valley with nothing but a tiny highway and river far below your feet.   Really incredible.   My heart needed a break after that.  Would've gone again if I hadnt discovered the Alpine Coaster.

I like nature, green trees and blue skies, so i wasn't terribly interested in the caves, but the one tour we did was interesting.

Nice gift shop, large indoor café with incredible views that had nice hot food (nothing gourmet, but hot) and hot chocolate which was nice after we got a little wet and chilled in the morning showers. The Smokehouse looked good too, but hadn't yet opened when we were ready to eat.

The park opening was delayed due to wet gondola tracks from a heavy rain during the night, but we had no trouble seeing everything we wanted to between 11 and 4:30, including a long lunch and long afternoon rest.  Granted, there were no lines.  Maybe you need all day if there are.

We visited Colorado from California pretty much to visit this park, and I'd do it again.  Two nights at the Queen Anne B&B in Denver (cheaper flights) then a beautiful drive along I-70 to Glenwood Springs for 2 days.  We had a wonderful time!  (Highly recommend the lake at Georgetown as a rest stop.)  The people were friendly, every worker we encountered was helpful, and most of it was cheaper than California.  Would love to return!