Great multi-pitch pack
My climbing partner and I have been using this pack for the last 2 years and have been extremely satisfied with it. We spend the vast majority of our time trad climbing and it suites our multi-pitch needs quite well.
It's true that the pack is not huge, and for a trad climber that's fantastic! For the approach, it has just enough space to hold two 1 liter sigg water bottles in the side compartments, most of our food for the day in the zippered top and two 8.4mm double ropes inside! The loops on the outside are perfect for our alpine draws and allow the creative climber to strap on shoes and other layers to the outside.
For the climb we naturally replace the rope with our shoes and any extra layers or water that we may have. The smaller (yet adequate) size of the pack means that it stays out of our way while climbing. The water bottle compartments on the outside of the pack are simply genius. They allow you easy access to your water while at a hanging belay without digging around in your pack, reducing the risk of dropping gear.
After a couple hundred pitches of climbing our bag was in good shape. The only thing that it didn't stand up against are the teeth of a squirrel which was the fault of myself, not the bag.