Couple of things I like about it:
1. It doesn't "Time-out" like the old one, so you can go back to it after a while/day etc. and it's still 'alive'.
2. You can 'zoom' the pics with the scroll-bar on the touch-pad of your lap-top whereas the old version only has the one magnification level. Small or Big.
3. You can 'search' very easily within a catalogue or within a specific section or even sub-section. (This is a useful feature).
Having said that, the older version is more akin to what I was used to at the dealership using Parts Manager Pro. (PM Pro.)