Briefly:
- It's significantly faster. Entourage no longer feels like I'm wading through porridge when using it.
- Word "feels" like a proper mac application (the button bar is gone)
- Downsides: When editing appointment details, there is still a bug with entering times in the spin boxes.
- Major issue: When editing the detail of an appointment, it seems that the appointment will be randomly reassigned a date and occasionally also change the length of the appointment (this is actually a serious disappointment for me) ... I'm yet to file and talk to Microsoft about this one.