I'd say the Degritter provides the icing on the cake, with a Loricraft getting things nearly fully clean. If one of them fails (and we know which is more likely to—I've had the Loricraft for 12 years and I have worked it hard, whereas U/S machines don't tend to last that long), I'll be happy to use just the survivor. If a record is noisy after I've cleaned it I know it isn't dirt, and the fact is not all will become silent.
But if full automation is your goal, then U/S is the way to go.