Pros:
I really like disc golf courses that require line shaping as opposed to pure macho 'grip it & rip it' throws. Might be because I'm older or out of shape, but I enjoyed my round at Horns Hill enough I might have to come back next time through the area.
The course consists of two sections, with holes 1-5 playing clockwise around the space south of the big storage tanks, then holes 6-18 circling the wooded slopes from West to East and back, at the North end of the park (please see the map I drew up). Most of the holes have long (blue) and white (short) tees leading to DGA baskets with 12+6 chains, to go along with signage at the short tees. Most of the time, you can see the trails leading to the next tee.
Hole distances from the short tees fall in the ace run to birdie bash range for all players above a casual to recreational skill level, with some added distance from the longs on 1-5, 8, 10, &16, plus significantly different lines of play on 6, 9, 11, 12 & 15 (note they've dropped 6 & 7 from the old layout, renumbered, & added new 17 & 18). There are opportunities to shape lines in both directions off the tee, and wooded challenge, especially from the longs. You will get some experience here playing elevations on the drop shots on 3, 6, & 9, as well as uphill play on 7, 11 long, & 13. If you hit trees, you'll do more than run risky side hill shots on about a third of these holes, you may have to add some extra hill climbing cardio. The good news is, the short tees are extremely manageable if you play within yourself, so they can be really fun to sharpen up your short, technical game. Meanwhile, the long tees add enough challenge to make it interesting for Intermediate to Advanced throwers. Overall, a nice, versatile, shaded course for a summer round.
Cons:
The split nature of the course makes it almost worth driving from the 'front 5' when done there, and parking back by 18 for the remainder of your round. Natural turf and toe boards are OK, but I would think the course might be a little slick in rainy seasons. Speaking of which, the drive in and out is so steep that they do lock the park gate when it's icy, so this is technically a seasonal course only.
While the course appears to get some regular play (based on erosion, gravel down the hill on 6, some clearing and maintenance), it needed a little summer weed trimming when I was there. It also has tee signs missing on holes 3, 8 & 12-17. There is a 'next tee' arrow on 3 (& 6), but it could use more of them (for first timers) after 2, 7, 9, 11 & 12. The flow is pretty good (except the obvious from 5-6, but there is a bit of a walk after 11, as well.
The biggest concern for me started on 14, as you have to throw at a prime parking space, then throw over the road on 15 & 16, and then the tee for 17 is just a few feet from 16's basket. The layout and logistics of the course would keep it from being a place where you could host a full disc golf event.
Final thought: it really felt as if the routing and layout of a majority of the holes favors a left to right flight path (good for lefties and RH forehanders!)
Other Thoughts:
The best place to park for the 'front five' is at the top of the drive, next to the course kiosk/sign. I chose to drive back to 18 (near 6) to finish things up.
Reviewer Background as of this writing: played 270 courses and written 252 reviews, with skills hovering around a 900 rating, I started playing at 50 and am now 55. I don't throw far (300 footers feel like success), but am addicted to DG, and have played with folks ranging from age 7 to 87, so I try to write reviews helpful to all.