I haven’t purchased from Buckeye/Dylan, yet, but I do plan on getting my next Hypex amps from him.
If you want best watts per dollar ratio, the Hypex NC502mp is the best purchase. If you want more SOTA level bragging rights, look at the newer NCX500 or even the Purifi options.
It’s often noted that you likely won’t hear any difference between any of them. But if you are a graph guy, Purifi tends to put up better numbers. Minimally better, to be certain.
Beyond that, Dylan is simply a really nice guy. All my interactions with him were super cool and how he comports himself online shows he is more interested in professionalism and real customer service. The few times I’ve seen issues brought up with his builds he has always addressed them directly and got fixes… and even a redesign… done. All of it without blaming someone else.
That is why he is going to have my business when I buy my next Amp!