Saga's first year of with it's Monarch series made me happy with it's jacket, but not so much with the pant.
I had bought the pant in hopes it'll be just like its jacket counterpart; a 20k/20k 3L shell jacket. It held its ground for the most part on the 20k business, but not so much on the shell.
To say the least, I was disappointed to find it lined fleece lined around the thigh region. While it provided warmth that I enjoyed for hill banging days, the fleece lining was too much on days when I headed out touring.
The midweight fleecing didn't allow my legs to breathe properly on tours and hikes.
Durability wise, the pant held its ground. It's strong shell fabric withstood the classic edging slices on the pants cuff. However, its waterproofing didn't hold as long as the jackets did. Around midseason, the pant began to hold water around the back and knee regions, resulting in snow build up and freezing.
Stitching on the knee pockets (which I find pointless) also tore, but that's the nature of stitching fatigue in an area that moves the most.
Many of these issues were addressed in the current season of the pant. Keep in mind this review is for the 13/14 season, and the 14/15 season pant has been completely revamped (review to come shortly).
Conclusion: Durable, warm pant that may not be ideal for someone who does a lot of touring, but someone who is looking for a tech pant for day to day resort skiing.