The amount of filesystem/networking issues I've seen fixed and all the performance improvements I got from just updating a kernel probably make up for the time

The amount of filesystem/networking issues I've seen fixed and all the performance improvements I got from just updating a kernel probably make up for the time that it caused issues. I guess it needs a critical mass + certain infrastructure maturity that running on whatever the latest kernel is makes sense. As for the 'certified on stock RHEL kernel' software... I try to keep away from those, but I'm picky and pretty lucky when it comes to job selection :)