Mostly cool.
Lots of flares. And you can put them where you want them (move them around on the picture). You can also add more than one effect at a time. Turn them off and on. All kinds of adjustment sliders let you make effects more realistic.
Renders a little slow on my old 2006 iMac, but works. I just have to wait 3 to 5 seconds for it to apply each effect.
Overall, does a good job. As long as Im patient.
Spaghett_Face about
LensFlare Studio