I have one and used it for backpacking and hiking in Maine last summer.
The tripod struggles to be stable with a Canon 5D and a 20-70mm zoom lens. It also struggles to remain stationary for multiple exposures. The tripod also has the capability to wrap its legs around a small tree or branch to get some elevation, but again, the weight of the 5D and lens causes the tripod to creep.
On the other hand, I have also used the tripod with a smaller point and shoot camera and it is very stable and works fine. When using the small camera, I first attach a mini ball head (for flashes) to the tripod, and then attach the camera to the ball head. It is a lot easier to level the camera using the little ball head attachment.
Be prepared to lay on the ground, or search for a suitable rock, or tree, that can give you the position and perspective you seek.