I have a few suggestions (one or two of which might be
considered bugs):

The current installation program insists on writing to /usr
even when it is nfs mounted.  It would be nice if the
installation did not try to write anything to /usr if it is
mounted via nfs (while still writing the necessary files to
the other partitions).  This would make it MUCH easier to
set up or upgrade machines which nfs mount /usr.

The ability to set up a machine as an NIS client during
install is great; it would be nice if the option existed
during install to set up a machine as an NIS server (though
I imagine this would be a low-priority option to add, since
it's not nearly as common).

It would be nice if the /var/yp/Makefile matched the typical
RedHat installation more closely (e.g., commenting out the
GSHADOW = gshadow line, since gshadow doesn't exist).

Also, it would be nice if the smb.conf file had the printing
= bsd line uncommented, or if it was at least documented
clearly that the line is needed for the system to work as a
samba print server.