Once you get UbuntuStudio installed, out of the box - it just plain works, and is bundled with SO MANY GREAT THINGS. I once installed UbuntuStudio alongside a friend of mine in the pro studio, who had just gotten a new Mac.
I was up and running and working on projects within 20 minutes from a fresh install - he was still hassling with UAD licenses and dongles, a week later.
Seriously people, if you think you are an audio professional, and haven't yet had a dive into kxStudio or UbuntuStudio on a spare machine, you are missing one of the greatest parties in the audio world right now.
And then, if you want to get REALLY sophisticated, as an audio professional, you NEED to dig into - and most important of all, understand - what is going on with the Zynthian folks.
This is the future of audio - not just for DAW's, but embedded audio devices, too. When you grok what Zynthian is, and how it works, and what it is doing, you will change your mind about everything you think you know about audio on Linux.
(Hint: it takes the extremely powerful Linux Audio/DAW software ecosystem, wraps it in a functional and simple UI, and exposes EVERYTHING in the Linux Audio world to the musician .. from synths to FX units to MIDI processing and generators and beyond. Simply a massive leap forward for audio professionals...)