I really do like it - but if you tested me on how it tonally, objectively differs from the 20+ other overdrive/bluesbreaker-esque/tube screamer-esque/Klon clones/etc. that I have, would I reliably be able to differentiate it? I'm honestly not sure. I feel the same about distinguishing (reliably/consistently) between the sound of most OTR Teles even though that's what I spend 95% of my time playing (albeit a high-end clone from a different manufacturer who worked in the Fender Custom Shop).
I'm not sure the KoT is worth it, but I do really like it. I'm sure there are pedals that are just as good or better that aren't as expensive.
I'm a pretty poor witness though, as after I put together that pedal board in the above picture, I did relatively quickly take the instrument cable from my Suhr and just plug it directly into the Milkman One Watt and skipped the whole signal chain.
As much as I like pedals (and reading about them/collecting them and futzing with how to make them sound "best"), for me it's really hard to beat the sound of a good guitar going directly into a good tube amp. That's just me though.