This trail works just as well either direction. You'll have a good amount of climbing and descending no matter which direction, but west to east will involve more climbing. It is pretty easy with not much technicality to speak of, and the average grade is low enough that strong beginners and up will have no problems. You are riding along a ridge line much of the time so it can be tight and narrow at times with steep exposed slopes to the side (especially on the west end). Keep your speed in check and you'll have no problems.
The eastern half of the trail (east of the tunnel) sees quite a bit of traffic: mountain bikers galore, hikers, dog walkers, and the occasional horse.
You can access this trail from many of the other Corner Canyon trails such as BST on the west end (this will give you more climbing) or any of the trails that merge at the Peak View trailhead such as Clark's Trail
and Canyon Hollow
(this will give you more descending).