Digitals and beams have the same claimed accuracy but sensitivity to follow a trickler is usually much better in a beam and beams won't drift or crap out on you because gravity always works the same. Anyone finding a digital powder scale to be "faster" than a beam isn't using his beam scale properly.
Digitals shine when weighting things that vary more than +/- a half-grain, such as cases and bullets, but not powder.
My 46 year old Lyman/Ohaus M-5 (Same as the RCBS' 1010 today) still reads its 260.9 gr. test weight exactly, and exactly the same as it did when new and I fully expect it to last at least that much longer. Ain't no Chinese electronic gadget going to match that!