Pros:
In well maintained city park with short grass, restrooms, a working drinking fountain and Mount Si looming over you. Great place to practice your short game. Interesting holes that play back and forth across a wide but shallow grass covered ravine that meanders through the park. Good baskets. Adequate tees.
Cons:
Strictly pitch and putt, no distance drivers required. The course was mostly empty when I played it (on a sunny Saturday afternoon) but I can see how it might get crowded. However, the ravine it plays across isn't used for anything else so that shouldn't be a problem.
Other Thoughts:
I found this course addicting, I just wanted to keep playing it around and around to see if I could do better. After 6 rounds in an hour I made myself stop, never did birdie #2. For short-game practice I'd rate it a 4 but compared to bigger courses I can only give it a 2. I started with about 8 discs in my bag. After a few rounds I put my bag back in the car and continued with 2 discs, a putter and a driver. I used a fairway driver for #4 because of the low ceiling and distance but I'm sure others could manage with a putter or mid-range.
In the winter, and after a heavy rain, the ravine can partially fill with water, especially on #1. This actually makes it a better hole: you throw over a cute little pond. It can also be very windy here, adding to the challenge. When it is, be careful not to overpower your shot on #3 and end up in the yard across the street. Consider the street and beyond OB.