I have not grown Belladonna, greenair...but my first grow from seed (did clone only grows for over 10 years) was Paradise "Durga Mata".
If the Bella Donna is as stable as the DM was, (and I've heard that Luc at Paradise has VERY strict controls so chances are VERY good) you'll have a great grow. My DM's were very uniform, grew easily, and yielded very well.
good luck
bt dt