I have it on mine and I love it.
Take a test drive with one, and one without.

Can't wait till it is avaialbe aftermarket.

Mine has it and I thought I could really do without it. But after having it I dont think I would order another one without it. I like it because how I adjust the steering wheel and seat i cannot see the top of the speedo so this constantly tells me the speed im traveling. I love it. I compare it to comfort access, if you never had it you'd never miss it but when you do have it its a must have.

I really think HUD is a safety feature for watching speed. In an M thats improtant for me at least.

Absolutely love the heads-up display.

Get it, you won't be disappointed. I was a bit bummed to find out that Lexus is offering it in their RX.

I think the M models add Tach to the display. Drool.

HUD is my favorite option on the vehicle and I will not purchase any other BMW without it. For everyone that says it is distracting that is BS. If you don't like it or don't want it on then hit the button and turn it off. It does not always have to be on. Also, it is very convenient to not even have to look down at the speedo and with navigation it is very useful because the directions are displayed and you can keep looking straight ahead without ever looking down at the Nav screen.