They are ok once you get used to them, like all things having the book helps no end..

I can only assume that a 400a and a 330a are similar to the European Schindler Smart in which case it is a lot different to a 3300.

The Engineers in Europe are now using I Phones to connect to the Bionic system and doing software upgrades to restrict what parameters can be adjusted on the on board display.

Which really is not helpful