I have a few and have owned several. The KTR and Ceriatone Centura are the best in my opinion. The Archer is a close second. Overall, the Centura and KTR share something totally unique with the Klon Centaur. That little something cannot really be described but you recognize it in tone and feel. Other pedals are extremely good at nailing everything about the Klon except that one little thing. That is probably why a lot of people keep their KTRs and Centaurs while the market is flooded with all the other Klones.
The KTR and Centura are a little different in their own unique ways. The Centaur absolutely nails the original Centaur. The newer KTRs nail it too, but just a trifling bit hi-fi. I perceive just a teeny bit more clarity and presence. I say that because I have 2 KTRs. One is from around 2012-2013 and the other is a few years older, I think 2016. The 2013 is just like the original Centaur, but the 2016 has that wee bit of hi-fi presence. Hardly perceptible though. I had to click them back and forth over several practice and recording sessions to catch on. The Centura is exactly like the Centaur, and has the same vintage warmth and similar peculiarities of the controls. For example, the gain knob seems to mostly affect the sustain until it reaches noon, then it starts to add some distortion. The Centura's volume control is very powerful so it matches the Centaur's 11:30 output level by the time it reaches 9:30. The KTR output is very similar to the original Klon.