Pros:
I'm going to do my best to cut through the BS of some of the other reviews. Iroquois is my home course and was where I first learned to throw a disc.
The Pros:
While being mostly short holes in this par-54 course, it can be quite technical, with many wooded areas, a hole that involves throwing over the pond, and some frequent elevation changes.
I can't stress how great this course is for beginners. There's not a ton of long holes to worry about, so it gives plenty of cadence to using proper form and being precise, especially in narrow fairways (we're looking at you, Hole #14!).
Hyzers, Anyhzers, and straight shots, all of them are needed on this course.
Most Tees have decent signage. Not always the most accurate, but the distances and pin locations are. All tees are concrete, most are fairly new, as the course was redesigned a few years ago.
Not a crazy amount, but there are at least SOME benches, even on the holes deeper in the woods. They're especially inviting after the trek uphill from hole 9 to 10.
Course is practically plays as two different courses, one in spring/summer and another in fall/winter.
Cons:
We live in the Ohio Valley, it gets humid, muggy, and swampy in those woods. Be prepared to sweat and possibly be eaten alive by mosquitoes. Bring insect spray.
The wooded areas of the course are just covered in poison ivy/oak. I myself, am not allergic (lucky me!) but it does bother some of my friends. Maybe pack Calamine lotion if you'll be spending some time here.
There is an amphitheater that the course shares a parking lot with, sometimes parking overflows during events and they use the fairways of Holes 1 and 18 for extra parking (so lame!)
Holes 1-4 put you near the quite busy New Cut Rd. It's not uncommon to get honked at, or hear someone shout something stupid just as you're about to putt.
Irrigation and downed trees have become an issue as of late. Fairways get rather swampy after just a days rain. Make sure to bring extra towels.
Recently, the course has started to be flooded with your flyby "One disc and a vape stick" type groups, even on weekdays! It's become a regular thing for me to either have to wait on a group that doesn't want to let others play through, or go around them and not play a complete round.
A last word of advice: Bring bright colored discs, especially in Fall/Winter. It becomes incredibly easy to lose a disc among the leaves.
Other Thoughts:
Iroquois is in no way, the end all, be all of disc golf courses. For where it is though and the amount of space it takes up, I think they make great use of the space.
The course originally had another layout before the parking lot was extended. For whatever reason, that prompted the entire course to change, though I think ultimately for the better. This version presents quite a bit more challenge than it's previous form.
All in all, if you're looking for a great, relaxed trip through the woods and up and down hills, you'll love this course.
Oh and for those who get lost at the course, I really have no idea how, there's a concrete stone at every basket that points to the next tee.