FINAL - Its my default preview render preset, used to be fast in 99,999% of my scenes

FINAL - Its my default final render preset, used to be fast in 80% of my scenes

NOISE AND MOIRE AVOID - is very slow, used speccialy in scenes with a lot of lights, reflex with low glossiness and frosted glass; Avoid moiré effect too, for who doesnt know whats moire, here´s an example: http://www.mathematik.com/Moire/

DEFINED SHADOWS - slow render, used for final render, avoid light cache contact shadows problems.

ULTRA LOW - is very very fast, used to get an "sketch" of the scene, its perfect to preview the exact color/objects diffuse composition of the scene cause the color is almost unaffected by the low quality.