While I hear the Kinos have some of the best color reproduction of any LED on the market (please correct me if I'm wrong), I find Litemats to be indispensably versatile, especially the S2s. And that said, their color reproduction is also excellent (their tungsten LEDs are some of the absolute best on the market).
The S2s aren't the brightest (especially compared to the Plus / Spectrum lines), but they make up for that in the quality of light that comes out of them. If you're working fast, it's hard to beat a light that you don't necessarily have to add modifiers to. Add an eggcrate to it and you have a seriously fast, killer light for both stand-mounting and rigging. I've never had an issue with my S2 2L's build quality, though I was admittedly very nervous about it when I first got it - you don't really have to baby them at all.
Also to note: the Litemats have a few effects built in like flashbulb, fire, etc. though I believe not as many as the Kinos.