Pros:
The kiosk next to the parking lot has a detailed course map. All holes have laminated signs, letting you know where the pin is placed.
The park is maintained by the city of Irving, so the grass is mowed and maintained nicely. No worry of playing a round in knee-deep grass.
Nice tee pads.
A solid variety of tee shots, including some with risky, but rewarding, over-water shots.
A nice variety of hole distances, from 250 to over 570 feet.
Chill locals.
Dog-friendly.
Trash cans between every few holes.
Cons:
Holes 3-5 are very close to each other. A shanked drive will definitely end up in the fairway of another hole during this segment. Getting from hole 5 to 6 requires you to walk across hole 2's fairway, so be on the lookout for other players.
The walk from hole 8 to hole 9 is a bit long. You've gotta cross the bridge and then walk near the top of the hill to find the tee pad. If you think you've missed the tee, keep walking. You'll see it.
Hole 10 is pretty far away from hole 9. The "shortcut" is probably loaded with snakes during warmer months, so be careful.
No public restrooms, it seems. Only an issue if you're drinking a few brews during your round.
Other Thoughts:
When I played my round here (Easter Sunday, around 5:00 p.m.), the park was full of pedestrians grilling in the middle of the course. Holes 10, 12, 13, 15 and 18 were unplayable because pedestrians were chillin' in the middle of fairways, grilling and drinking beers. I wouldn't have much of an issue with this, but there is ample room around the park to hang out, even with a large group of 30, a grill, coolers, etc. and not be smack-dab in the middle of a fairway.
The course was still fairly busy, with at least 6 or 7 other groups playing. They seemed to be locals, were very nice, and gave great directions for the holes that didn't point you in the next tee's direction. We were all a bit upset that 5 or 6 holes had packs of people hanging out in the middle of fairways.
I'll definitely be back, though. Fritz feels a lot like Leonard L. Woods (it's well-maintained and has good signage), but it actually provides some challenge.