Yes, this is IMHO a superior cleaning process. You will no longer buy media, use chemicals on your brass, or need to clean primer pockets seperately nor pick out the kernels stuck into flash holes.
a complete inside and out cleaning takes 1-2 hours using only dawn, lemishine and water. I will NEVER go back and cannot recommend this process enough. Thumlers are known to last typically 20 years or more, a wise purchase any way you look at it. A few recipients of some of my brass lurk around these parts, maybe some will chime in.