Carts make it easy to play a lot of golf in a hurry
Grass! Rare on desert courses.
No cacti and I only saw one spikey plant.
Water in play
Map. It's pretty hard to get lost even without it.
Our group threw two discs into yards (they were particularly terrible throws. The yards really aren't even in play) but the owners quickly returned them. It wouldn't take very many discers jumping fences for this course to disappear.
The beer cart comes around with icy cold drinks.

You need to call for a tee time or be prepared not to be able to play for a while
You should really know ball golfing courtesies and habits because you will be inserted between golf ball foursomes. Some of the holes play across their greens (which make for a nice "fake lake" since they're OB) but sometimes you have to wait for ball golfers, and sometimes they have to wait for you.
You won't get any discs out of the murky lakes, at least on the day you throw them in. I put 2 discs in and lent a disc that someone else threw in. ~$50 in six holes
Ball golf courses don't have enough trees for my taste.

This course is so unique you have to try it while you're in town. If you've never played disc with a cart, here's your chance. $10 gets you 36 holes and a cart. That's a great price. I spent a while talking to the pro and he is very supportive of disc golf as it provides an additional revenue stream that also supports the ball golfers. He did say it was hard to mix the two and he is considering making it mostly disc in the summers, and mostly ball in the winters. But with shorter rounds and a cart....I'd come play this course in the middle of summer.

I thought the front 18 was slightly better than the back, so if you have to choose, play the front.