If you are ok with paying a few bucks on OSX sizeup or divvy are much more mature projects. Though you could always add what you want to shiftit because it's op

If you are ok with paying a few bucks on OSX sizeup or divvy are much more mature projects. Though you could always add what you want to shiftit because it's opensource. I personally use Sizeup but I might try divvy because it seems to be way more customizable.