The Berkley Braid Knot was conceived by Berkley Fishing as a speciality knot targeted specifically for braided lines. Due to the use of a double line, the Berkley Braid Knot is easier to tie when using thin diameter lines such as braided lines that can be comfortably threaded through the line of the hook. Despite its name, the Berkley Braid Knot is actually a strong all around knot that works well for other line types and also maintains a good grip and resists slippage on braided lines.
Here are the knot strength efficiency numbers for the Berkley Braid Knot as tested across the three major line types.
See the Fishing Knot Strength Chart for more data and details on the testing methodology.