I tried to use elements until I realized there was no Lab mode (this was a version or two ago, have things changed?). I suppose if you've never used lab mode you wouldn't know it was missing, but that's a pretty massive gap for me. Along with isolating channels in any mode.
To the OP, almost any digital image can be enhanced even with slight bump in contrast or sharpness, or white balance correction without harming the natural looking nature of the file. Heaven knows digitally it's going to look different on 99 out of 100 monitors that will see it and it will be different as a print depending on your vendor, the paper and the finish that is applied.
Digital cameras, even in fully manual modes, still have a lot of guesses they need to make when rendering color and such, and there's times when they don't get it right. SOOC is great and all, but I don't think even your die hard 'I NEVER SHOP MY IMAGES' is going to throw away an award winner that has sensor dust on it that can be cleaned up in 15 seconds.
Every image I 'finish' goes through at least a 30 second workflow that checks white balance, contrast and sharpness. Things you can't always control unless you are in 100% control of the light, and even then...
Both are free and I understand GIMP is every bit as good as Photoshop..albeit not user friendly.
I was a GIMP user for many years (7?) before switching to the point that the 'not user friendly' aspect wasn't an issue for me. The single biggest issue (which you may well classify under user friendly, but I don't) is that you can tell that Photoshop is created with the artist in mind. The controls are designed differently. They're not any less or more effective, they just speak to a different mind set. The controls for both for me are very intuitive but in vastly different ways.