The padding is a good fit for your horn and will keep it from bouncing around in the case and self-destructing. It's not, however, designed to be stacked, thrown in the luggage compartment of an aircraft, or tossed from a moving vehicle. If any of these are true and you somehow are prone to falling on your horn while it's in the case, then perhaps this isn't the case for you. It's substantially stronger than a gig bag, but it's certainly NOT an ATA-rated flight case and there are other more rigid, heavier, and costly alternatives (such as a Manning or SKB) that will take more abuse.
That said, it's light and certainly stiff enough for daily, non-abusive use. I've taken mine on flights in the overhead bin with other passengers banging on it with their luggage, shipped them internationally with horns inside (adequately protected with packing peanuts in the box), loaded 9 of them in the back of the car stacked on each other for a cross-country trip, loaded and unloaded them from the car several times per week for years, and even had a bari in one sitting on the ground but propped up vertically against the tailgate of my wagon and fall to the ground without damage.
It will take a few knocks and still protect the horn, but you can certainly crush it if you decide to stand or sit on it. If you need that level of protection, you're going to have to shell out some more serious dough.