Baffles wear from rear to front, so that's interesting that they can be replaced. This is why a brake is a very good idea for a rifle with a dedicated suppressor. I no longer use brakes but would if I was running a suppressor full time. This acts as a sacrificial baffle.
What causes the wear is the blast, obviously. So, closest baffle to the muzzle will take the most blast and unburnt powder. Unlike a flash hider, the brake will take the most serious blast. With many suppressors, you can't just easily replace one baffle.
So again, that's a benefit. Unfortunately, you don't get something for nothing, so with all these benefits, I'm curious what the negatives will be.
In addition to my question on the length and weight (which I just noticed was answered), what are the materials? Inconel or stainless?