Well I finally took the plunge and purchased and installed. Waves plugins worked fine, then I loaded up Ozone 7 Advanced, and that was all she wrote, it loaded fine, then I double clicked to bring up the UI, it came up, and that was it, you couldn't do a thing except the 3 fingered dance - Task Manager - end task. But that's not all, a reboot was required as it seemingly wouldn't let go of audio and midi, so you couldn't use any other DAW/audio app until rebooted. Next move was Apps and Features - Mixbus 3 - uninstall.
Then I remembered the latest interim release, I had only installed the one I downloaded after purchase, so I reinstalled with that fire Mixbus up again, then Ozone 7 Advanced worked fine. Haven't tried all my plugins of course, that would take quite some time, but out of those I have tried, apart from the false start with O7A, the only one that has given any trouble is EZKeys, as Clint Martin has mentioned.
Another issue I found after installation, and this could be coincidence, but I don't really believe in coincidences, and I'm fairly sure it's not. But after installing and then crashing, my PC, which up until this very day would boot and shutdown like clockwork, I mean you could set your watch by it, on boot up it would display the Windows 10 logo thing, and the little spinning dots would complete 3 half cycles, then the login screen would appear. Then on load the desktop and all it's icons would just be there. Now, after installing Mixbus and crashing etc, start up times are longer, the spinning dots still do their dance, but where before it would switch to the login screen, it now repeats the spinning dots dance, only on the second time round they aren't smooth, but jerky, then it will go to the login screen, but when the desktop loads, all the icons are blank and appear one by one as apposed to being there instantly. Mixbus is the only thing that has changed, and as I said, up until now it has been like clockwork. (
Lucky I did a full disk backup before installing)
As to the fabled Mixbus sound, well it hasn't hit me yet, but it is still early days, I'll have to do a bit of reading up, but I messed around with the channel compressors and EQ's and saturation etc, and if it is there it isn't anything that just slaps you in the face and says 'here I am', but as I said, early days.
Overall I would have to say it isn't the most stable DAW going, and when it crashes it crashes good, for me anyway, requiring a reboot 4 out of the 5 times it crashed. In the 18 months I have had this PC build running I pretty much haven't had any many if any crashes, and certainly nothing requiring a reboot. I also think that Mixbus as it stands now is not ready for 'Prime Time' especially as it is pitched as a fully fledged DAW, in which case it seems it is fairly incompetent as it stands with all the issues it has with stuff that is pretty basic in most other DAW's. Perhaps if you just use it for mixing/summing/ finalizing the project you will bypass all or most of it's shortcomings and bugs, but I think if you go into it as a fully fledged DAW as it is being pitched, you are in for a rude awakening. (
From my research before purchase, I was aware of this, and had no intention of using it as a DAW as such, but just for it's sound, which still alludes me, and for mixing and the final stages)
I will keep plugging away at it, reading up, watching vid's and see how it goes a bit further down the track, but if I had my time over now, I'd give it a miss.