Here is what I know about Kohler products. Within two homes we only have Kohler. While the toilet is just right for the specific bathroom where it's located, I'm very impressed with the enhanced flushing feature. One will never need a plunger.
Overarching the various products that we have, their service is terrific. Those who work in customer service have, in my case, gone out of their way to handle any issue. I imagine they the the same for anyone.