Pros:
The course is set on a beautiful piece of land with lots of elevation changes -- add to that the fact that the designer is one of the best in the world (Houck), and you've got yourself an excellent, varied, challenging, and overall very aesthetically pleasing course.
The first thing that comes to mind when I think about Zboaz is "variety". Not only is every basic type of line/shot represented, but there is also a great variety in the way each hole looks...which I think adds a lot to the overall "fun factor" of the course. Although you may throw the same type of shot off the tee a few times throughout the round, the individual holes look and feel different enough that you stay interested. There are also very few "filler" holes at Zboaz...really only 1or 2 that I would consider to be less than interesting, but even those provide a good challenge for most.
The next thing that comes to mind here is elevation. Typically, most Texas courses aren't known for elevation, but Houck did a good job using the elevation at Zboaz park in creative ways. Through the course of 18 holes, you have to throw downhill, extreme downhill, uphill, extreme uphill, across gorges/creeks, slightly down and uphill, etc, etc. The most notorious elevation holes are probably 2 (tight wooded fairway with a steep uphill climb to the basket), 4 (loooong multi-level downhill bomber), and 9 (blind hyzer over a tree-line from about 40' up).
There isn't a single hole on the course that's a "gimme"...you'll definitely have to be on your toes the entire round to shoot well.
The baskets are all Discatchers, all the tees are concrete (several have multiple tees), several holes have seats/benches, and the locals are VERY active.
Cons:
The last time I played there, the trash cans at most holes were beyond overflowing...but that may have been addressed since then. Also, a lack of quality signs can make it a little difficult to find baskets on some of the longer/blind holes.
The course is typically very crowded on weekends and evenings...this is a great sign to me, but trying to get in a quick round when it's crowded is next to impossible. If you're playing by yourself, prepare to ask "can I play through?" many times.
Other Thoughts:
Overall, one of the best in the DFW. Zboaz is fun and very interesting without being gimmicky at any point. Provides a great challenge regardless of pin placement.
The weekly mini (Sunday morning I believe) typically has a good turnout, and Zboaz is also the site of one of the Metroplex's biggest tourneys. I've heard a lot of touring pros list Zboaz as one of their top 10 courses.