First time buyer in 2016. This is one of the most pleasant surprises. The flowers, while a bit delicate, are a vibrant yellow and it has literally hundreds of flowers blooming as I write this. Given its really low profile it must be used at edge of planter. It spills well and mine is even "climbing" a bit on the Beth's Blue and Tequila Sunrise with which it is grouped.
Given the spreading habit of this plant I could see it being an excellent candidate for ground cover provided it does well in native soil.
All I have to do with gold dust is water regularly and fertilize weekly. Needs no special treatment and nary an aphid, Jap Beetle or any pest on it.
I liked the first one so much I bought another last week.
One thing I should mention: the garden center from which I bought these takes impeccable care of their plants. Thus my Proven Winners got off to a great start. Some places like Lowe's or Home Depot kind of take the "winner" out of even Proven Winners.