This course is in a park that surrounds a storm water catchment pond. There are the usual city park amenities(bathrooms, water, play area), is fairly well maintained, and not too busy.
The pads are a good size(with the exception of 2, see below) and the pins have been maintained since some previous reviews, in pretty good shape.
The map you can print here is good and necessary.
This ends the pros.

I'm going to address this as 2 separate 9s.
The Front:
Since this course uses the pond, some holes will be unplayable if there is water present. Tee 2 is underwater and just pavers, kind of, and 3 and 9 throw across it, impossible for me as I top out at 300' on a good day. The cheat grass is high enough to hide a disc and was plenty dry. had to stop and clean my socks twice.
There is a small homeless camp that was deserted during the day at pin 3 and you could see camps upstream of 1/10.
No signs. Zero. No course map or tee signs or next tee or OB. Without the course map available here it would be tough to play the front and impossible to figure out the back.

The Back: Really, there is no back. It shows holes playing in reverse order on the map but the only tee marked is 10, spray painted on the spillway concrete. All the rest are a worn spot in the grass at best, knee deep in cheat grass and guessing(tee 11) at worst. This is only a double 9 in the loosest, most charitable sense. If you don't have the map, don't bother trying as it was plenty difficult with one.

If you're looking for a quick 9 during the day and are close, it is worth hitting. Used the area pretty well to have some challenging shots. Again, make sure to print the map here or have it on your phone or prepare to be frustrated.
If it was listed as just a 9, I would rate it a 2 or 2.5, but pretending it is a double 9 without doing the work is annoying.

So I attempted to play on a day following some rain. I believe I played the front nine.There was no signage to help and not a single local in sight. I did find nine concrete tee pads. They all had lots of strange markings on them, including the intials of the people who had constructed them. I would have liked to have been able to read a hole number somewhere on one of them. The # 3 basket across the gully by the causeway/dam/breezeway did in fact have a # 3 on top. This # 3 hole would have been a fun throw to make except this area looked to be flooded. I chose to skip the hole and tried to walk across but it was too wet.

I did manage to risk life and limb and cross over the causeway thing to get to the # 3 basket without walking several miles around (this might be an exageration on my part!).
I was able to finish what I believe to be is the front nine. Be after much searching, I could find no evidence of a back nine.

SIGNAGE!
The fact that part of the course is unplayable after a days rain.
I never found the # 2 tee pad.
Where is this phantom back nine?
It would have been great to inscribe the hole # in the tee pad the way they did at Thunderbird Paseo.

I guess maybe the locals know to avoid this course after recent rains. I'd like to give it a shot with someone who knows their way around around. There were some fun and challanging throws to be had here. Abd I certainly realize how difficult and frustrating it is to try and put up signs and then have the local vandals tear them right down. But I see no evidence here than anyone has made any effort to sign this course. There's lots of space here and the area could always use another good course.