As a result, when buying a Klon clone, as long as it's a faithful reproduction of the original circuit, you can purchase based on looks, as modifications like different diodes are likely to have a small impact. The Centaur stacks pretty well with other pedals, especially at lower gain levels, and so some boutique options that offer utilities for further tweaking EQ, or indeed having two pedals in a single enclosure are good options.
Famously, the Centaur had a buffer which some people lionise to the point of building it into a separate pedal. Thus, most klones are either buffered bypass or selectable between buffered and true bypass.
Finally, the original had a massive enclosure, so as always, we tend to say that size should be one of the most important considerations. After all, if you can't fit it on your 'board, it doesn't matter how good it sounds!
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