I get more impressed with Sagelight the more I use it. The HDR tools -- which effectively allow you to simulate HDR effects from a single Jpeg -- are quietly impressive, a definite +1 on the noise reduction tools, the Bokeh thing can also produce stunning results and it can use Photoshop-compatible plugins. What's not to like?
I've only recently discovered a workflow that's my current new toy: the undo brush, used in reverse. For instance, increase the saturation of the entire image to a level that you envisage for just (say) a flower, use the undo brush, use the feature within it to fill the entire workspace with the image state before you increased the saturation, then use the brush to remove the undo from the flower: effect, a supersaturated flower against a normal background.
Most "serious" image editors make you think in layers and Sagelight is different: it took me a long time to understand how to work with it and get the sort of results I could see (from the examples on the website) were possible, compared to the other image editors I use. There are still things I wouldn't use it for, but I've reached the point where I won't do ANYTHING with a photo before I've taken it through Sagelight at least once.
I also have no affiliation with the software or its author beyond the normal loyalty you might expect of any happy user.