I put my GPS to the test today for a thorough test - right along side the Garmin stick-on.
I knew where I was going (about 60 miles away) and there 3 different ways I could have gone, all within a couple of miles of each other, but knowing the area, I took the longest mileage but virtually clear sailing in no traffic. Had I taken the "recommended' route, yes it was shorter by 6 miles, but the traffic is terrible any time day or night. Both the Garmin and STS NAV recommended the same route initially then things went downhill quickly.
The Caddy - POOR results vs the Garmin. In fact it kept telling me to turn here and there, which would have made absolutely NO sense whatsoever. On highway exits, the STS Nav only showed exit numbers, not street names. The Garmin did both.
On one MAJOR intersection of two Interstates, it never "told" or displayed the way I was supposed to go, when I already knew where I had to move from one to the other. The STS Nav still showed 4.7 miles to the next 'turn'. Have no idea where that would have taken me.
The Garmin performed flawlessly. After realizing I picked another route than the 'shortest' it quickly re-displayed the next best option. The magenta line was clear and correct.
The STS - A HUGE dissapointment. Lacked definition (mimic 3D), No clear cut "line" to follow, voice was close, but could have easily missed the mark. The two were fairly close on time to destination and miles, but that is about it.
I'll stick to my Garmin and use the DVD (with lockpick) for making calls and watching DVD's and TV with digital converter connected to Aux Vid in.
It's a damn good thing I knew the area well and what really threw me, was missing the transition from one Interstate going E/W, transitioning to another Interstate going N/S. That was a MAJOR error in my book. Left me with little confidence had I reallly not known where I was going.
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SUMMARY - STS NAV -----> Just short of junk...