Since I turned my son (age 12) onto these books, he's been reading through them like fire through a house trailer. He left the first book in the series (Nine Princes in Amber) laying out, and I picked it up and started reading it again for the first time in fifteen years.
It's good. A little campy, more than a little dated, but still good.
It will probably never see film, but if it did I want Christian Bale as Corwin.