I'm only recommending it because B9S is more futureproof than A9LH. B9S is also being updated more, which will probably increase stability, longevity, and reliability of the exploit as opposed to A9LH. In addition to the fact that Luma, one of the most innovative and user-friendly CFWs to exist for the 3DS family, has made the switch. If you're looking to keep up with the scene and be able to use future hacks and such, B9S is the way. It's also just common sense and is not a long and overwhelming process. Stop being lazy and upgrade for your own safety and convenience.