maybe they meant the B67? i did two B67S (S = shorter for the ladies) and my wife and daughter love them (we ride a triple). my wife has never liked any other saddle and had big reservations about the brooks mainly because i had a Brooks Swift on my road bike and it was much stiffer than the B17 or B67's. i did a sprung B17 (aka Flyer) and i like it a lot more than my Swift. The springs aren't super soft and bouncy, but they really take out the hard hits. since my wife is kind of short and her seat post has to host a handlbar stem as well a thudbuster was not an option for us.
the great this about Brooks is you have little to lose if she doesn't like it. they have great resell value.