Pros: Works well in a variety of modes and supports moderate customization for those unwilling to code. Grade-A color schemes. Supports manual recoding for those that are. Comes with integrated hotkeys for quick toggling. Little to no processing power or disk needed.

Cons: It recolors practically the whole page, meaning individual parts of sites (like a paper sheet in docs) cannot be easily exempt. Colored icon (if displayed) cannot be customized. Extension menu is uncustomizable.