I've been using the (old) Meebo Messenger for years. I've never had the impression that they cared about its users a lot. There were no updates on the user interface since I began using it, they didn't add features that were highly requested on the feedback forums.

The toolbar thing is just... I don't know what that is. Looks useless to me.

Another thing, are there any good other web based multi messengers? I guess they will shut this down soon then?

I'm pretty sure they gave up on the messenger, and decided to put all their effort into the toolbar.