I also subscribe to BizMiles and like its
travel features (second to Inside Flyer) and
also have the account monitoring system.

It was free.. you can't beat that.

My United account is about a few days behind,
but that's ok. Could not access my Delta
SkyMiles account -- a note said it will be sometime before it's available.

AA account -- pretty updated... as well as the hotel programs.

It's a good program, but I like MaxMiles which allows the keen to details side to me
to keep everything up to date.