Musical fidelity M6SI problem.

Great. I can't wait to get mine. I should have it in a week or two.

That's surprising considering good capacitors are not expensive.

That's good. I should have mine in a week or two.

I am a dealer for MF.  I have never had a customer have that issue as described.  
Regarding customer service, that is defined by your dealer.  I had a customer with a warranty claim.  Focal Naim NA (the distributor) quickly provided me a service center nearby the customer.  The service center was slow, but that was more that they couldn’t replicate the issue which turned out to be wonky issue with a particular turntable.  
FN NA paid for the service and return shipping.  Was not an issue.  If you have customer service issues these days, it is solely an issue with your dealer.  

That's reassuring, considering I have purchased am waiting for delivery of a new M6SI.