In my locale we have two main courses. One was built in a tamed area of a state park. The other was built in an ACoE rock quarry which had the federal minimum of land reclamation performed on it. It's definitely not land in its natural state but is very rugged and not at all tamed. Both are full 18 hole courses, both offer decent challenge and variety. The primary difference is the "tamed-ness" of the park land, with one exception the park course actually has more thorns.
The park course gets significantly more traffic and many more local golfers claim it as their home course.
I prefer the ruggedness of the quarry course and think overly tamed courses in general are a snooze.
To those who participate in course design or just wish they could; does tamed/park-like land or rugged and/or natural land appeal more?
It's all about preference. Take
Geocaching as a for-instance.
People hide stuff all over the world...some of them at disc golf courses. It's a great pastime to amuse yourself with whilst your significant other returns the shoes she doesn't like at the mall for two hours, and it's also a great way to plan an epic camping trip with your friends in a state park.
They grade Geocaches on two criterion: difficulty and terrain. The first is how hard it is to find, the second is how hard it is to get there. The OP appears to want opinions on the latter.
Terrain on a DG course is a huge deal. Playing on a mountain for the one, breathtaking downhill shot you'll probably lose your disc on might not be worth the 17 uphill shots you have to endure to get there. However, I think that DGCR provides all the information you need in order to make an informed decision as to whether or not to play the course.
That said, it's all about what you want in a disc golf course. Personally, I love a challenge. And truth be told, I suck so bad that even a 9-hole course set around a tee-ball field is a challenge for me to make par; however, it's the experience that draws me to the game. I want to play all different kinds of courses: flat, mountainous, wooded, open, short, long.....whatever. Bring it.
Do what you do and play what you want, but if you're reading this you have no excuse for trying to tame a course that didn't fulfill your expectations....as related in the OP, anyway.
Just sayin'.