I am very happy with this product. I currently use it to do watercolour sketches in my visual diary. It creates a perfect watercolour ground on the flimsy 110gsm paper in my current visual diary. In the past I have used Acrylic Gesso for this purpose, but it is not an ideal ground being too slippery for watercolour.
I also plan to use it to cover old discarded drawings on charcoal paper which will save me buying watercolour paper for some time.