I have had my BMW Rally 2 jacket for 6 months now and it's the best $550.00 I have ever spent on motorcycle gear.
With the zip out Gortex liner and the vents in the arm, chest and back I have never been hot in this jacket and I have yet to be cold.
When I first bought it I was concerned of the "stiffness" of the jacket but it is now broken in and it still holds it's form well.
If you have been sitting on the fence about whether you should get one, I would suggest you go for it.
It's really a great addition to your riding gear.