If like me, and you use an active stylus to take notes and doodle plan ideas for work then no as it will leave you with dead spots on the screen.
However I am not against screen protectors as scratches and scuffs drive me bonkers !!!!
I will say my Lumia 1020 looked like it was fresh out of the box when it sold after 3 years, as with Gorilla glass I would protect the plastic body more then the screen.
My 640 XL screen looks like day one, but my White Gloss body developed a crack already in my pocket ( as I work in a machine shop), and a stray metal chip got in the pocket and caused a long scratch on the body also......means a trip to the Microsoft store to replace the back. I've also started to search for a thinnish rubberized wrap/case for it.