[Dovecot] libwrap does it work on in 2.0?

Hi,

I noticed recently that libwrap (TCP Wrappers) is supported,
although disabled by default, in the current Dovecot 2.0 but doesn't
seem to be mentioned anywhere on the wiki. Is this working well/at
all? Anyone care with experience using this care to share their
experiences? My OS is FreeBSD, I noticed on some Linux distributions
there may be issues, but this won't affect my installation.

thanks Andy.