I needs to balance out the strength across my HMS biners for rope anchors and room was getting tight at times when multiple ropes, and other equipment were running through my others. I bought 5 30Kn Boas to give me a balanced high level of strength across them and the room in the biners is excellent. Add to that the impressive aesthetics of DMM equipment and I'm very content, an excellent product.
I wanted a big biner for building belay stations. The DMM Boa 30kN absolutely swallows a couple of hitches with zero hassle fitting them in or closing the gate. Recommended without reservation.