I piddled around with this using a 20 dollar crock pot and a 20 dollar inkBird controller...small amount of water I was not concerned with circulation.
It worked just fine. I just could not get over the grey meat color. It was nice and tender and easy enough to throw on a grill to brown up.
I came to the conclusion that this would be a real tool in a commercial kitchen allowing meats to be cooked, held at temp, and quickly browned and served. For me, at home, that ain't the way to cook a good steak. I do admit, my old school may be hanging out...again.