charlie ticket first impressions

I got my Charlie Ticket Combo Pass for January this morning. First thoughts:

• the front looks like a standard "Charlie Ticket". I will have to be careful not to confuse it with a single ride "Charlie Ticket" that I'm hanging on to (for the same reason I used to always have a spare T token on me).
• The tickets all seem to be the same colour. How will conductors easily know if it's a new month? It seems that this will be harder for personnel to check by hand.
• No more line to sign your name (not that I ever did anyways).
• No space for advertising (not that it seemed that the T managed to sell that space often).
• My pass has a big "C" on the back, but no specific explanation of what a Combo pass covers. The old passes explicitly said what lines it covered and excluded (e.g. Quincy Adams & Braintree).

Bring on the Charlie Card...