Oh yes, the new books are amazing, he introduced even more controversial ideas that were not present in the older books, Inferno is also one of my favorite books, although much like you i enjoyed all of them.
I've only really read Angels and Demons, which I thought was excellent and I would definitely recommend. I started reading Da Vinci Code, but hated it early on. Nothing against the author though, the story was just bs for me. I still have to get around to reading Digital Fortress.