When Jeff Dorgay of Tone Audio Magazine wrote "one of those "oh shit" moments" in his review of the BHK600, I immediately related to what he was saying.
It is indeed those "oh expletive!" moments that really makes this hobby of ours worthwhile.
Honestly, it doesn't matter if it's that new musical track, setup change, gear, or tweak that generates that response.
It's those oh shit moments that to me really matter.