I've got the older version of Harrison Mixbus and the reverb pack for it that cost extra plus their mixing tutorial videos. I haven't put it back on my computer since my computer crash and upgrading to Win 10.

I used it on a couple of songs and then went back to Reaper. It's got a great tape sat sound - I wish they'd just make it a plugin. I didn't care for the Ardour editing workflow or JACK which didn't always play nice with my computer.

I imagine it's improved since my version. If you come from and like an analog mixing board the interface is pretty cool with the vu meters and fader channel strips with compression and eq built in etc., making it feel so familiar for mixing - but you have to learn the Ardour workflow to use it as a true DAW. Not dissing Ardour, it's just different.