Anyway back on topic....

This is not a spoiler!!

Kylo Ren is one of the greatest villains ever.
Adam Driver is brilliant in the role, defintly the star of the film and the biggest victory of the Star Wars revival.

I thought that he would struggle to come across ad anything more than a place holder for Darth Vader.
But no, he was so much more.
Darth Vader was brilliant, but more collected in his malice.
Kylo Ren is sick and broken, like the evil wields him as a puppet.
His violent outbursts and uncontrolled vengeance make him utterly formidable.