Tried Rosella for the first time this year - might have to give them another chance next year as, unlike, MoS', mine had distinctly chewy skins and not a particularly good flavour.
Having tried many different varieties over the years (plum, beefsteak and cherry) I sometimes wonder why I don't just stick with Gardener's Delight, which to me are consistently the tastiest and most trouble free variety I've grown.