i started with a rogue because I wanted to try the dance of knives. It’s a nice build. I was able to solo Torment 3 bosses and got to 200 paragon with it. So then I decided to try Spiritborn.
I leveled it to 60 and applied my 200 paragon. And without one single glyph equipped, i jumped into Torment 2 without even ancenstral uniques and was melting everything. NO GLYPHS, NO ANCESTRAL UNIQUES!
So yeah, spiritborn is strong. Nothing wrong with it being strong though. I am playing the Quill Volley build, in case you were wondering. Is it fun? Yes it is. So was rogue, but the power difference is embarrassing.