Another vote here for the M33.Had mine for several months now and it still blows me away, playing out to a pair of GoldenEar Triton Ones.
It's recently (finally!) been Roon certified and that has just made the icing on the cake for this slick and sleek all-in-one. The BlueOS is a matter of personal taste (I quite liked it - no big issues) but other's mileage may vary there - but with Roon you can by-pass that anyway..it'll love your Roon Nucleus...especially if used with ethernet.
It's recently (finally!) been Roon certified and that has just made the icing on the cake for this slick and sleek all-in-one. The BlueOS is a matter of personal taste (I quite liked it - no big issues) but other's mileage may vary there - but with Roon you can by-pass that anyway..it'll love your Roon Nucleus...especially if used with ethernet.