When you read his conclusion, it sounds like it's the usual Wilson sound, and he advises against amps that might have glare in the upper mids. It's a sound that is good, but not for all tastes.
Wilson Audio Sabrina X Reviewed ! WOW
"If you don't have $329,000 for some Wilson Chronosonic XVX's, you get a Massive Helping of that Performance PACKED into the Sabrina X" !...
https://parttimeaudiophile.com/2021/04/18/wilson-audio-sabrinax-loudspeakers-review/
https://parttimeaudiophile.com/2021/04/18/wilson-audio-sabrinax-loudspeakers-review/