There are numerous descriptions of the trail and on the NPS website for Guadalupe Mtns so I won't repeat that information - I will give my impression of the trail.
Make sure you wear hiking boots with thick soles that will give a good grip on the rocks throughout the trail. The trail has some dirt but is mostly rocks - all sizes and shapes, not just riverbed rocks. The trail is marked by rock cairns and colored tape so keep your eyes open. You will walk in the creek bed for a good portion of the hike and when you come to the end of the creek - look to the left and you will see some natural rock "stairs". (Photo attached) Climb those and go another 1/4 to 1/2 mile where you will find trail tapes signifying the end of the trail. Return along the same route.
The hike was enjoyable but the constant looking for tapes and/or rock cairns, the fact I did this in late afternoon and this was the first time on the trail made this an "OK" hike rather than a "great" hike.