I've had Sunsprite/Freisia for a couple of years now and "meh.." is right- it's performance has been underwhelming. It hasn't shown very good winter hardiness either.
Could be my climate, but several of the modern hybrid teas, grandifloras, and floribundas I've tried on their own roots have remained very small. However the more recently introduced Kordes varieties I've tried are performing well. I read somewhere that they trial them on their own roots.
