Everyone should draw a conclusion for themselves. Objective evaluation is not easy and I have tried to highlight both positive and negative aspects equally. The final verdict might be different for every user.
Personally, I like the self-confident but modestly inconspicuous appearance of the M. An ergonomically slightly unwieldy brick, which does not stand out with flashy design but instead clings to a tasteful appearance.
After a few start-up difficulties and getting used to the handling, it won a lot of sympathy. If you just want to enjoy music, then the Calyx M is simply top notch! And does anything else even matter?