Compared to some of the modern $100 wunderfolders, they are kinda cheesy I guess; plastic scales, aluminum liners, rather soft stainless blades, etc.
However, I got a Victorinox "Officer Suisse" as a groomsman's gift at a buddy's wedding 20 years ago. It's been in my desk at work since then and has probably been used more often than any knife I've owned. One of its duties is to cut fruit; just the other day I cut up an over-ripe mango with it and it got covered with sticky juice. As I've done hundreds of times, I took it to the sink, put it under hot water and shook it dry. Never done any other maintenance to it other than sharpening.
It's opened soup cans, cut rope, plastic ties, de-burred machined aluminum parts, opened many a box, tightened screws, been dropped on concrete several times. It's showing its age, but still works good.
I usually carry a Leatherman and/or single blade lockback, but I wouldn't be crushed if I had to settle for an SAK on a deserted island. I kekun the Swiss knew what they were doing when they designed them; I can't think of a better value in a knife considering the utility you get out of the things.