I’ve just retired a set from a Spesh Enduro after 3 years. The front’s been no issues, just needed the occasional truing and tightening that any MTB wheels needs really. The rear is a whole different thing though I’ve cracked a rear rim, which TBF to Spesh was replaced no questions asked and struggled after that to keep it straight and tight – the spokes (especially non drive side) just won’t keep their tension. I’ve probably replaced them all individually, and last winter relaced the whole wheel from scratch.
I don’t think that 28 spokes on that rim, in an “enduro” application is enough. I don’t know if the rim is too stiff and all the energy gets transferred to the spokes…who knows? I’m no expert I do know that if I ride hard, that evening I’ll have to rebuild the back wheel. I do ride in a particularly rocky part of the world, though.