I'm more concerned with the future wrt to Roon Labs. By their own admission, they are a very small outfit and, from past and recent experience, have a keen commercial eye.
Let's assume their GUI is best in class - the fact that it is multi-vendor/platform makes it extremely appealing to Apple, Sony, HP etc. and nothing prevents a take-over and future lock-out (of some vendors/platforms), including M.
If Roon is as good as we are led to believe, it would be a backward step, to say the least, to be forced back to a 'maintained' and 'ancient' Sooloos v2 software set with Meridian.
Also, I wonder what M themselves would do, if, after a while, when Roon becomes the de facto interface, if Roon went pear-shaped or, more likely, were bought out by a competitor? Like some on here, the recent (MQA) demos using v3 software were used very successfully, I suspect, to elicit more M hardware sales. After all, Sooloos is predominantly about the interface...
Putting your shop window in the hands of a 3rd party seems a little risky to me.
Zander