I love the HUD.
I wish there were more info on it. At least add the water temp, since with the HUD, I've no other reason to look at the dash.
The HUD was one of the main gadgets that attracted me to the CX-5. I really like knowing that if I flake out, or if I'm in an unknown area, I won't worry about a missed speed limit change.
I also like the "You're following too close" reminder right there. Yeh, I don't need it to know when I'm tailgating. And I've been driving for nearly 50 years and have never run into the back of another car. But it reminds me to take it easy. That's a good thing. (If I still lived in the congested DC area, I would turn this function off.)
I loved the HUD from my first test drive.