Ton, I know there’s a million different opinions, but of the 2 folks I know with saints (me and my mate Bal, who weighs about half what I do) have had them fail spectacularly. Not recommended.
I was about to ask the same question as you, as I having a bit of a mare with pedals at the mo. So far, all flat pedals have failed within a year that I’ve tried (except M520 spuds – 7 years old and still going on the commuter) – I don’t mind treating them as disposable, but it’s a bot of a ride killer when they do fail!
Fails – superstar nano’s & nano x, Specialized boomslang, Saints, welgo jobs, and a bunch of other emergency replacement ones that I’ve bought, normally in the porters du soleil!