When did you start using QuicKeys?
I started with v1.0 back around 1985 when QuicKeys had few functions and kept upgrading through v4.0.7 (R.I.P.)
Many years – hundreds and hundreds of macros...
I believe I didn't give it up until Mavericks came out in 2012, and it became quite clear that QK was a dead product.
Even though I'd been running Keyboard Maestro in tandem with QK since KM1.0 came out, it took a long time to move completely over – and despite my SuperUser status and long experience with every utility in the book I found a number of things about Keyboard Maestro difficult to learn.
Those things were mostly functions that QuicKeys made easy and Keyboard Maestro didn't – like renaming items in the Finder – things that required loops and programming strategy.
I still prefer to use AppleScript or AppleScriptObjC and actual code for many of these sorts of things, but I've often forced myself to do things the Keyboard Maestro way – just so I know how.
Keyboard Maestro is at v7.3 and has been around since early 2004 or so. In twelve-plus years it has grown into the best-of-breed automation utility available for the Mac, and its complexity and sophistication have leveled-up more than a few times.
It is no surprise that many people get overwhelmed by it, but those who stick with it discover (to their delight) why a Mac without Automation is about as useful as a balsa wood boat anchor.
The Keyboard Maestro forum is a much more friendly and useful place, since Peter moved it from Yahoo Groups to a self-hosted Discourse forum. We strive to get people over the hump of overwhelm and into the delight zone.