The point of this shrub in my garden is to provide a mass of bright yellow/green foliage colour in the hot bed throughout the season - which it does. Its tiny small, starry flowers have a lovely scent for the 3-4 weeks they are out in late Spring.
In 2012 I cut it hard back (to 20 cms above ground) based on seeing some in a park being treated this severely and coming back well. It had been taking over about a third of the hot bed. It has responded very well and is already covered in leaf and about 1 m x 75 cms. It's the one that attracted a Red Admiral butterfly in February 2013.