I used to write tutorials for Pixelmator back a few years ago under a different screen name, and I loved it (The original app, I mean, and the writing to I suppose). I have yet to really try the "pro" version, but I did see something added that irked me, although I do understand the teams need to add it in.
That's Touch Bar support. Seriously does anyone find that useful and or faster than keyboard shortcuts? I can operate Photoshop, Illustrator, Lightroom, and a slew of other applications without so much as a glance at my keyboard. I tried that touch bar on a colleagues MacBook and I wasn't overly impressed by it. Sure a smart adaptive area is a nice idea, but I had to constantly look down to see if it changed for different tools and what not and I just found it sort of counter intuitive.
But I will say this, the new colour adjustments has me curious to play around with this new version, I have some harsh seascape photos I would love to use to put it to the test.