IME/IMO the reason that there are so many varied opinions about the Wilsons is very similar to the varied opinions you hear about Sound Lab or a lot of other excellent speakers.
A really good speaker is revealing of what you put on them, and some amps and preamps that are well-reviewed are not really all that great, and some are. So you can have the speaker sound terrible with transistors and tubes, and you can have it sound excellent with transistors and tubes.
I've heard the Sashas with our electronics as well as a few other amps and preamps, enough to know that the speaker is excellent and if you don't like what you heard from it, its could well be the fault of the electronics which you are assuming are better than they really are. Could also be the fault of the setup in the room, but it isn't the speaker. BTW they work great with classical, heavy metal and anything in between or outside :)
A really good speaker is revealing of what you put on them, and some amps and preamps that are well-reviewed are not really all that great, and some are. So you can have the speaker sound terrible with transistors and tubes, and you can have it sound excellent with transistors and tubes.
I've heard the Sashas with our electronics as well as a few other amps and preamps, enough to know that the speaker is excellent and if you don't like what you heard from it, its could well be the fault of the electronics which you are assuming are better than they really are. Could also be the fault of the setup in the room, but it isn't the speaker. BTW they work great with classical, heavy metal and anything in between or outside :)