Riwaka is an aroma hop with a floral, grapefruit and passionfruit like flavour. It's a punchy addition to the new-world styles of Pale Ale and regional Pilseners.
Not my words again, so ok i added this new hop to myself in a recent ale i made as a dry hop i used the whole 100g after 24 hours i sampled wow after 48 hours i removed the hops
Summary, would i use these again yes in that amount no, the description above i would say is bang on very punchy and very floral