I downloaded MSN 6 yesterday and
aside from some issues signing in, it seems to work great.

My only gripe is that
they still have not added my favorite ICQ feature; the ability
set your status (offline, busy, available, etc) for each person individually. I
used this feature a lot in ICQ so that I wouldn’t get interrupted by friends and
family while working. But I also want to remain online so I can be seen by the
rest of my team who do need to be able to interrupt me on occasion.

Without this feature, as soon as I go online I get assaulted
by 100 IMs from everyone I’ve ever met in my life.