I arrived at the trail around 4:20pm, and there were only two other cars in the park lot. In fact, I didn't see any other hikers as I made a wide loop around the preserve, just a couple trail runners and once I got to the east side of the preserve, several horses and cyclists.
The trail is well-maintained and mostly flat. There were no muddy spots, and I didn't see much wildlife (certainly no bears or cougars). However, the preserve offers gorgeous foliage, and it's a lovely place for a peaceful walk. I started headed north on the Trillium Trail, went east on the Collin Creek Trail, south on Siler's Mill Trail to the Pipeline Regional Trail for a 4.6 mile loop that took one hour, 55 minutes.