I have had these shorts for a while now, and they have a few holes and rips from some crashes. That is to be expected though, not everything is going to hold up through every fall. But the material does seem a little weak for MTB shorts. I did buy an older model from the backcountry outlet site so maybe they have made them tougher.
The model that I got does not have a removable liner, it is integrated in the shorts. The only gripe really I would have is the chamois isn't as thick as some of my other shorts.
Pockets are great, one zipper/ one velcro for the cargo. Velcro side straps to tighten down.