it seemed like a "no-brainer" for me and my brother. We mapped out our Start & End on our devices as we started our trip. While my iPhone had the "more" direct route, my brother's Garmin had us making U-Turns on Interstate 5 on several occasions, (though we didn't take the Garmin advice). Garmin was adjustable as you are driving, but you really need to be properly trained on its use and quick adjustment functions. iPhone utilized the Toll Roads in Orange County, CA and provided a quicker route with ACTUAL "travel time" with Traffic. Also noted, the iPhone gave excellent TRAFFIC conditions just as the Garmin did with regards to GREEN, YELLOW, & RED driving conditions, and BOTH were very accurate. iPhone offered the website of Legoland and a phone number to call to check on our 2 for 1 coupons; not sure if Garmin offered this feature. On the ride home, we were hungry for In-N-Out Burgers, so I entered the eatery in my iPhone and the "thumbtacks" fell from the sky and I had six choices in the North San Diego County area and decided on the burger joint just off Hwy 76 and Frazee Road in Oceanside, CA, and "poof" we were eating double-doubles Animal Style in a matter of minutes. We both decided that the iPhone was the way to go!