Good choice BikerChick.
Mine have lasted 3 years, although
1) you should get the reinforcement piece that goes on the inside. 3rd world roads, and too much weight in the bags, tends to cause stress fractures around the holes the drilled in for the mounting "pucks". And also, the seam.
2) add some additional pop-rivets to the bottom.
Otherwise, they are great. They will distort on crashing, but you can straighten them easy enough. Other cases that are stronger (i.e. Pelican) distort and can't be bent back into shape (ask TedMagnum about that!).
Soft panniers won't last a year on bad roads - the weight, the constant pounding causes stitching to break, the things fall apart, you'll be constantly looking for someone to sew them back up towards the end of your trip.
Chiang Mai, Thailand