I'd say depends how much - I bought 4 of them not so long ago and they all run like clockwork. Sound is awesome and the whole tidal / Roon integrations are great.

However, I have also blown up three with the wonders of African power surges and M doesn't officially support. However depending how technical you are things are fixable. I ended up I=upgrading the fuses for ones that blow on a surge then come back on when cooled down so the African grid no longer fries them!

If not a bit techie from an electronics perspective then not supported by M so tricky

M Customer since 1991...
2 Channel: 818v3 into 8000SE's running Roon on a Nucleus One with QNAP TVS-871-i7-16G 8 Bay NAS
Cinema: 861v8, 2 x M6's, 7200HCSE + DSW
Office: Explorer 2 into Shure SE846's
Kitchen: AD88
Other Stuff: Philips 77" 4k OLED Ambilight TV. Hue Lighting System, ATV 4K & a lot of Apple stuff...