I'm not sure if that building near the parking lot furnishes park-goers with restrooms or not during warm weather months, but it isn't open now (late Oct). There are no other restroom facilities that I can detect.
I only have two beefs with the layout itself. First is the basket placement on hole #10, situated only a few feet in front of and above a small bog-like pond that looks as though creatures from the Star Wars trash compactor scene might inhabit it. In almost all cases, should you choose to go for the chains, the basket will be directly between you and the water hazard below and only a few feet from it, and if you miss your shot, your Disc will go into the water probably every time. Like Cold Brook Park's #20 pin placement, I rarely actually putt at the basket in casual rounds because I don't carry a putter I want to lose. I just pick it up instead and assume two strokes because I can always shuffleboard a shot up to the basket and drop it in just about 100% of the time, or if I'm 20 feet away or less, it's a gimmie anyway. But I can't imagine ever actually throwing a Disc at the chains there (or other pins such as Cold Brook #20) when there's a chance I'll miss.
I will admit that I haven't tested how deep that little pond is. If it's only a foot deep and it's easy to retrieve your Disc, I might happily erase my criticism of it from this review.
UPDATE: I poked a large stick into that small bog and discovered it's about 12-16 inches deep throughout most of it, mucky, and nastily stinky. Bubbles came up as I poked the sediment. You could possibly fetch a Disc with a stick and good dexterity, but I wouldn't set foot in it. (I will continue to pick up my Disc and assume two strokes outside of gimmie range.)
The other issue I have is Hole #7 being a long straight shot following along parallel with a woods line with the basket veering off to the left just like hole #1's pin placement, a hockey stick shaped hole with no visual from the (long) tee where the basket enters the woods. Instead of the redundancy it has with the second half of Hole #1 (although #1 is a better hole because of its first half), and especially being a hole type that John Houck preaches against making in the first place, I really think something different could be done in that spot.
But that's really it. I'm very happy with everything else, and anybody can nitpick just about any course in this manner.
ANOTHER UPDATE: Someone removed the tee-off obstacle tree from #11 long, a small tree that bisected the window out of the woods. Boooooooooo! The hole no longer has much character. That seriously sucks!
A THIRD UPDATE! - The cool vines that were hanging down to form an obstacle at #9's long tee have been unfortunately cleared away. That has also subtracted a degree of character. If this keeps up, I might have to drop the course from a 4.0 to a 3.5...