Sous Vide...Costco Style

I am super excited about a Costco find today, sous vide beef. While I've been hearing about this stuff for a while and I heard it is sold at fancy restaurants I've never tasted it because I don't go to fancy restaurants. I also haven't invested in the whole sous vide  kitchen hardware. 

What is this sous vide thing anyway? It's a extremely precise way of cooking meat so that it comes out super juicy, evenly cooked at just the right doneness. Meat is put into plastic vacuum bags and then cooked in water at the desired temperature for a long time. This costco beef lists beef, salt and pepper as it's only ingredients, no sugar or funky oils. It's perfect paleo/LCHF food. Only thing is, It doesn't say it's grass feed or organic so let's go ahead and assume it isn't either.
I took it up a notch by drowning it in bearnaise sauce. I made a batch from the very easy recipe at Diet Doctor.com. Thanks Andreas! I was in heaven.