Tumbling is certainly not the hard part.
It is the resizing, decapping, trimming, chamfering, primer pocket cleaning that is a PITA.
Unless that is the new Speer or FC brass. My experience shows it does not normally need to be trimmed after the first firing. It is made to .223 length (unlike, say Lake City brass), and is pretty stout. If fired in a decent chamber, it should still be under trim length.