Yep. I've also recently begun using Action Launcher instead of Nova.
I've actually had it installed for quite a while (October 2016), but only recently have I started to use as my daily launcher. And it's really quite good!
This isn't to imply any criticism of Nova. Nova is a superb launcher, and it has some great features that AL3 doesn't have, and which I do miss when using AL3.
The most useful in Nova (IMHO) is homescreen sub-grid positioning, which allows for more specific positioning of widgets and icons. AL3 doesn't have this feature, it has a regular homescreen grid of 5x6 icons (for example)...
...but AL3's implementation of Android 7.1 shortcuts, I feel, is better than in Nova, and of course it has 'Shutters', which is a great way of accessing widgets which you might not necessarily want to use (waste?) homescreen real estate on.
And of course, AL3 has Google Now as a left swipe-able panel, but only if your device is rooted, which probably rules it out as an option for most Android users😕.
All my devices are rooted and so I have write access to the /system partition, which means I've converted AL3 to a system app, thus allowing Google Now as a left swipe-able panel (as in the Pixel Launcher) and whilst not a critical deal breaker, it is certainly very nice to have.
I know that (in Nova) Google Now can be accessed by setting a swipe gesture, but having it as left swipe-able panel in AL3 just feels 'nicer' and is more convenient.
There are so many brilliantly talented and creative 'launcher' developers around (and Chris Lacy is one such developer), each with a different 'take' on what a launcher should be and what features it should offer, that I feel slightly uncomfortable praising one at the perceived expense of another, which really isn't my intention with this post.
So anyway, I'm currently sticking with AL3, and may return back to Nova at some point (and then back to AL3 again!!). And in between, I may make occasional forays into a third launcher I have installed, called Lightning Launcher, which redefines what a launcher could be. It has a relatively steep learning curve, but once you get the hang of it, it's an extremely powerful launcher.
Well, that's my view anyway, for what it's worth☺️.
(PS. I suspect I probably spend way too much money and way, way too much time on Android software and the subsequent tinkering around with such software !!😕).