You should go right ahead. I have it in full sun, partial sun, and almost full shade. It is remarkably identical and dense regardless...it flowers a little less in shade but still worth growing.

Ideally suited to shady areas, even very dense shade :-) In fact, it is a recommended groundcover/plant selection for dry shade. I have never experienced any lack of flowering under these conditions.

I'm in Iowa zone 5. It does best for me in partial shade. In sunnier areas, the plant turns red. It spreads very well for me & is excellent in choking out weeds. I've given away so many of these plants and everyone loves them. I don't see it very often commercially any more.
In Denver, I gave my son this plant -- it's holding its own in the dry climate, but doesn't spread.
Good luck
Susan