I'd say it's about the same. That being said, they are very different games so if you played wow for a long time Rift can be a very fresh/new experience. Definitely worth a play through.
edit: one word of warning though. If you thought rep grinds and valor farming were bad in wow..... endgame in Rift might not be your thing.
This post was edited by Reorox on Jun 23 2013 06:41am