I saw no other people during my hike, possibly due to it being early on a 25 degree Sunday morning. The refuge had a silent, remote feel to it broken only by the sound of running streams and an occasional bird.
The trails varied from gravel to grass to wooded and were mostly flat. There were abundant trail markers and signage throughout. Some of the trails were muddy and icy so boots are definitely recommended. I hiked on the north trails; there are additional trails on the south side of the refuge.
Here is a map of my hike. For additional information about the refuge, you can visit it's website here.