Synchronize IMAP to maildir folders - fast and complete solution with IDLE support?

This is likely to be borderline subjective, but I am searching for good alternatives for command line IMAP to maildir clients: Currently I am using offlineimap, but the docs are lacking, and support is vaning, what is a good alternative to offlineimap that has IDLE support, is fast and mature (does not loose e-mails). Ideally it should synchronize maildir flags (and gmail labels, but can't get everything). I know of: * offlineimap * mbsync