I don't know of anyone who uses BK, let alone used it myself.
I too would be concerned with locking myself into a fixture, which is why recommending another line would be a good move. Recommending one you haven't worked with before is not the way to go though.
Tell us the application, and you might get more responses, and fewer lurkers. Is it going in hardscape, lawn, or planter beds? What finish do they need? There are a lot of manufacturers out there, and someone makes the best one for your project. More info, and we can narrow it down.