Yes, both seasons. Despite some flaws the series has (what anime doesn't), I found this show to be one of my favorites out all of the anime I've seen.
I've been hoping for more confirmation of the R3 projects, but so far, all I've gotten is that prelude manga from centuries before, and I've found it to be a less than interesting read. Or relevant, for that matter.
Nontheless, Code Geass is an anime I would recommend to anyone who hasn't seen it yet, and an enjoyable re-watch for those that have.