Theyre great! I go 15% beef fat when ground. I do a salt pepper and a spicy dry rub I make with chipotle powder, cumin, coffee and ceyanne.. Cook whole thick smoked bacon from Smart and final.. Cook burger in bacon fat for bonus points. Toasted sourdough, too much lettuce, onion slices, lots of crunchy bacon slices and real thick tomatoes... Now I am hungry!