Honestly I'm not sure how many people are using Musical Fidelity gear these days. Particularly anything other than their amplifiers, which seem more popular and generally better than the rest of their line.
I used to own of a few of their pieces many years ago, and knew several other people around town who did as well. But over the years they seem to have depreciated from a legitimate high end brand, to more of a value brand, and now very much an "also ran" type of company. At least that's been my experience, particularly after Michaelson sold the company and retired.