I'd be interested in hearing how it works for you. I've been using it for years, but finally uninstalled it the other day, because it was way too unreliable.
That is, it showed the wrong bitrate as much as it showed the right one. Seems like it would get stuck on a certain bitrate, and start applying it to all new MP3s, no matter what.
I rebuilt my cache and repaired associations numerous times, to no avail.
Too bad, because I love the program when it works.