I purchased Blue Venom in the spring of 2016, as a bare root two fan division. It did well that first summer and both fans sent up scapes and bloomed. I had it in a temporary location and moved it this spring into a garden bed. It is going to bloom this summer, but has not done so yet.
It has done well so far, and it over wintered well. So far, I am happy with it. I will update this post after it blooms this season.
Update:
I checked it today, and it has increased from two fans to six fans in one year.