IMHO, and this indeed a very personal view; the McCormack sound checks off oh so many boxes, but....they’re just too forward. For me(!) there are some more appealing options. With Thiel’s and McCormack’s there is so much good stuff, but it ends up right in your lap. The McCormacks are truly excellent, but perhaps a better match with more laid back speakers; a truly outstanding match with Vandersteen’s. YMMV!!!
The similar but voiced slightly different c-j ss amps can work very well with Thiel’s depending on the models.