I have the American version of it... and I love it.
It was worth it for me because:
BBM became boring (even with the group I was in - most of them followed me to Android paradise lol)
Much more robust app store
Widgets
Better browsing experience
Barely any Battery Pulling
Phone booting in seconds, not MINUTES
Free Turn by Turn navigation with Google Maps (what a beautiful app)
No truncated emails
Bigger Screen
Custom roms
Rooting
Customization
But you may use your blackberry differently than I did and therefor have different needs. But I switched and I'm not looking back. Go to any store and play with one though... definitely don't just take my word for it, we may have differing opinions