Let's see how long this one will be around before the developer decides to abandon it.
It's inevitable; this type of “system enhancement” software often ends up becoming an abandonware, and your novel workflow is at the mercy of whether the developer of this app feels like keeping up.
I’ve purchased so many apps like this one over the years. It is how it most often turns out; You buy something like this thinking your workflow would miraculously improve. Then, you notice some bugs here and there. Something doesn't work quite right some of the time. You start spending more time tinkering and troubleshooting. Soon, you become a volunteer beta tester while becoming more and more dependent upon a novel way of using your Mac. After a while, you stop seeing updates and bug fixes. Eventually, you painfully discover that the developer abandoned it because he or she couldn't make enough money or found something else to do. You will have to spend a lot of time unlearning your workflow in a massive level of frustration. Your workflow gets ripped apart only because someone no longer felt like developing their tools and couldn’t make enough money to sustain the necessary effort. I affirm the sincerity of indie developer just trying to build something that might be useful. Regardless, I am sick and tired of this classic pattern with indie developers.
I found that, in the long run, I was much better off just making good use of all the default features on my Mac and steer clear of anything that changes the way you control your Mac at the foundational level. A single troubleshooting saga handily nullifies any small gains in UI efficiency over time. In this case, folders in Apple Dock does the trick. I can even drag an icon to it, and it will spring-load-open the folder. Once dropping the icon, My other hand hits Command + w to close the open window instantly. I've gotten so used to doing it I don't even think about it anymore. Elegant? Nope. Cool? Nope. It's boring. But this little workflow habit works on any Macs built in the past few years, and it doesn't require additional software to install. It works lightening-fast. I don't have to worry about whether some indie developer feels like keeping up with his work.