Pros:
Once an 18 holer, this 9 hole design runs through half of a neighborhood park, typical of the Clear Lake area. The park is very lightly wooded with some older trees scattered around, and a strip or two of thick woods. The course makes great use of the field with trees, and the woods together. None of the hole designs are too outrageous or demanding, and the baskets did the job.
Speaking of hole design baskets, I don't remember what the baskets were or what they were like. Whatever this course page says they are, plus enough age to not seem new, but not old enough to be decrepit. Does that help?
And speaking of age, the grass never got to grow very long, and is all mowed. Seemed like it is usually maintained pretty well.
Cons:
And speaking of grass, the tee pads were... rough. Pretty much worn strips of dirt, sometimes worn into little valleys. Very narrow, no clear front, so the hole length could be off if they were measured from the tee sign (for the holes there is a sign).
And speaking of tee signs, they were very minimal. I would not have known that these white poles were tee makers if I had not asked some locals.
And speaking of locals, I would not have been able to find my way around without them. The flow doesn't seem very intuitive at some places, and clusters of holes could easily mean you end up skipping or misplaying the course without realizing (the uninformative or missing tee markers wouldn't help either). Navigation is definitely a con if you're playing for the first time, without help. Otherwise I wouldn't worry about it.
Other Thoughts:
And speaking of navigation, if you chart a course to this coastal area of Texas, there are three pretty fun 9 holers clustered together. This is probably the best of the three, but the NASA course could overtake it if "they" ever install marked tees. But you definitely won't waste your time going here. With clear tee signs, and good pads, this course would be an easy 3.