My friend bought something similar when he got a sous vide circulator, and let me tell you... it really works. You get the perfectly cooked steak, plus that Maillard reaction we all know and love. It’s also killer for anything you want to melt cheese over, to get that lovely brown crust.
Ever had a Hot Brown? https://en.m.wikipedia.org/wiki/Hot_Brown
It’s the tastiest massive coronary you’ll ever have.