Just another opinion, I wore the kayano for a few years and I am suspicious they caused my plantar fasciitis (long story) holes appeared on them at toe box on two different pairs. I think they felt a bit heavy too. Plus points they feel super luxurious and they look good.
I'm now running in neutral shoes (brooks ghost 4) and whilst it's a different type of trainer I think it feels much better for running in. Not sure I would go back to Asics now