Their quality is a shit. I bought a wave+ 2 years ago, broke within a couple months (spring in pliers broke making pliers unusable). Sent it back and they say it’s not repairable so they give me a different one (mine was laser engraved). Then the replacement breaks (spring that holds pocket clip in place). I don’t even use the Leatherman that much, and wasn’t doing anything that could be outside of light use.
I haven’t had any problems with them but I have older ones and the only service I had done was on my partner’s Wingman, which has been going strong for years. Just got a Wave+ for a family member though, so I guess we’ll see how it goes.