G'mic is a great tool. I use the QT-Plugin for Krita.
The only problem I have is that I don't use it very much and if I do, I'm just overwhelmed by all the effects and parameters. I'm sure there's great value there... But, if you don't know exactly what you're looking for? Well, be prepared to click around for ages finding something cool. I have no idea how to improve that, but I find it annoying.
It would be also great for the effects to not be destructive. Like using it with filter layers. But unfortunately this seems not to be possible.
The only problem I have is that I don't use it very much and if I do, I'm just overwhelmed by all the effects and parameters. I'm sure there's great value there... But, if you don't know exactly what you're looking for? Well, be prepared to click around for ages finding something cool. I have no idea how to improve that, but I find it annoying.
It would be also great for the effects to not be destructive. Like using it with filter layers. But unfortunately this seems not to be possible.