It is pretty cool.
I've often thought of setting up a .30-30 for suppressor use since the Omega I have on my 300 BLK would also work for .30-30. Even with supersonic ammo the noise would be reduced a great deal, though not quite hearing safe.
Shooting .38Spl rounds with a suppressor would be really quiet and effective at short range, but it would mean getting another rifle and another can. I also wonder if shooting .38s in a .357 lever gun will cause crud to build up in the front of the chamber like it can with revolvers.