Re: Google Messenger...Is anyone using it??
The one thing that I have found so far that I don't like is that it ignores the custom ringtone information you may have set up in the Contacts app. I have several groups set up that I have given customized notifications to, so I can tell what the message is about while I am out and about and decide how to handle (work messages don't get answered after hours, messages from my wife get priority in most circumstances, etc).
The old stock app looked at the contacts definitions before falling back to default notifications. Messenger, at least right now, does not do that.
Hopefully this is something that gets more integrated when this is rolled out with the full version of Lollipop, because I really like the format of it compared to the old messages app.
I'd like to see more tweaking allowed as well.