I think it's cool and makes me think of the Arthur character. It would make a good name for an intelligent teenage girl. Nicknames might be Pru, Prue, Nella. Very cute. ♥.
I think this is a really old-fashioned but lovely name. I think this name has always reminded me of dew-covered, grassy fields and traditional home cooking for some reason. But now, whilst this name also reminds me of these things, it more strongly reminds me of Prunella vulgaris (the self-heal plant), which was used traditionally in many ancient Northern-European doctrines of medicine, and general herbal remedies, used to cure illness or general minor ailments.