Sous-vide cooking takes all of the guesswork out of the process, delivering steaks that are cooked to precisely the temperature you like each and every time. Not only that, but because sous-vide is such a gentle cooking process, you'll be able to achieve results that are more evenly cooked from edge to edge than even the best steakhouses in the world.
http://www.seriouseats.com/2015/06/food-lab-complete-guide-to-sous-vide-steak.html