chatting's much nicer now :-)
I've completed the Mellow and Normal levels. I'm halfway thru Brutal, then onto the most difficult - Insane.
One thing about online play has been ticking me off. They set up a lot of lobbies and all the games I ever see in the Newbeez lobby are at the Brutal or Insane level. The person who hosts a game gets to select all the options for that round - I think they should have added difficulty level restrictions for the various lobbies so that games in the Newbeez would be limited to Mellow with other lobbies for the other difficulty levels.