The digital Lyman works ok, but it's honestly not very easy to use when you first start out with it. It's accurate, if you hold your tongue just right. But it can be difficult to get the right reading, as it can take an artificially low instantaneous reading in the middle of a 2 stage pull, or can dead weight spike at the back of the pull and give an artificially high reading. Given proper fixtures and a lever to draw the gauge, it works incredibly well.
But a simple spring scale with a peak pull weight indicating slider is much, much easier to use. I have two of the Lyman digitals, and like them, but I've worked out the kinks in how to use them.