Sak's are just great, I will always have one around no matter what else I carry. And considering the huge production numbers, its amazing quality for the price.
Victorinox makes about 35 million knives a years, according to an article in Knife World some time back. The Victorinox factory is one of the most up to date facilities in the world. Very few QA problem knives slip through in spite of the fast automated pace of the latest CNC machines they use.
The stainless steel they use is pretty decent, and I think it compares to the Case stainless which is unjustly maligned. If its sharp when you leave the house in the morning, it will get you through the day with no problems. Just for yuks a couple of years ago, I took a Case stainless pocket knife, a sak, an Opinel, a Case CV, and a couple other knives and did an semi-scientific test in my kitchen. Karen thought I'd lost my mind, but I had cardboard, 5/8th inch hemp rope, and newsprint. I did the same cutting with all knives, and no differences showed untill over 75 cuts in the coragated cardboard 15 inches long. After every 10 cuts I would stop and clean off the blades to look at the edges under a 10X magnifier. At that point all knives would still cleanly slice newspaper. By 100 cuts my hand was killing me, but some minor differenses were showing. All knives would still cut the hemp rope in one pass, but a couple were grabbing on the newspaper. It took a deliberate effort to show up the differenses.
But the true beauty of a sak is not the cutting, its the fact that you can really fix things in a pinch with one. I've dropped out the ceiling fan in our upstairs bathroom for maintanence with the phillips on my tinker, Fixed the throttle cable on my Vespa PX150 motorscooter, fixed the back door with it, pulled a few ticks off Pearl the wonder corgi with the tweezers, and so on. A sak is a good thing to have around.