I would be interested to hear from users of Squosh Software's FFAP fixed fee pricing software to find out how well it works in practice. E.g:
Do they use it for all their fees?
Do they always follow the calculated fee?
Has it lived up to the claims and increased their fee income (by encouraging them to increase fees)?
I am a big fan of value pricing but am unconvinced that menu-based fixed fees are any more than a step along the route from time-based billing to pure value-based fees.