Vintage Mcintosh Speakers - your thoughts?

Speakers are very personal.  You need to use your ears and make up your own mind.  Personally never cared for Advents, but I sold a pair to one of my dearest friends who loved them.  Another close friend loved his Bozak speakers.  Tannoy was another that comes to mind as very musical.  My sister always liked Klipsh, but they always sounded like chaulk on a board to me.  Funny story.  When McIntosh introduced their speakers in 1970, I was a college student working part time at a dealer in the Seattle area.  We set up their speakers in a high end room along side Bozak and JBL.  The speakers drew a lot of interest, but sales were disappointing.  the rep said we were lagging other dealers in the area.  I thought they did not compare well in that room.  We rearranged things so we had an exclusively Mac room, speakers and electronics only in that room.  Bozaks and JBL in another room powered by Marantz.  Sales of Mac speakers picked up considerably.  We also were the top Bozak dealer the following year.  To this day I think there is merit to the idea of avoiding confusion.  Bozak and Mac were similar enough the confuse potential customers.