Originally posted by Dean Upson
I got the SPIII a couple of weeks ago and wanted to wait to comment on it until I had a chance to try it out. I opted for the Garmin SPIII because of its price, capabilities and mostly for it's portability. It can be used in any vehicle that you happen to be in with no hookup issues whatso ever. I have the unit placed on my extreme left dash and the (optional) window mounted antenna mounted mid bottom windshield. The wiring can be neatly tucked away so it is hardly noticeable. The performance to me was awesome. The mapping software that comes with it is excellent and it is very easy to use.
I would suggest getting the deluxe model because it comes with a "beanbag" mount and a more permanent mount if you want to go that way. You also get the mapping software for all of the US and part of Canada. There is a 128mb data card and a USB card programmer that will download map sets in a few minutes that would take hours with the serial hookup. I bought a windshield suction cup/magnetic mount antenna (you don't HAVE to have it) and an ac/data port adapter (power and data come into the same port on the GPS). The best part is the Garmin support. I had a problem with my USB 2. 0 not recognizing the USB 1. 1 Data Card Programmer. Garmin sent me a "fix" for that in a very short time, the support was great and it is an 800 number. They are great folks and surprisingly (to me) very customer oriented.
I have praised other vendors on previous posts, but praise is only given by me if it is well-deserved. Garmin is a first class outfit with first class people in their Tech Support.
Dean [/QUO
The proof is in the pudding, as they say. I used the SPIII all the way from Colorado to Virginia, Maryland and Washington, D. C. With a couple of exceptions, every street address was located and accuracy was as close as 14 feet. On the occasions where the numerical address was different, I found it had been changed by the owner of the business/residence. Can't do much about that. Altitude, speed across the ground, elapsed time, etc. is equally accurate. The device is as perfect as they come! I also agree with using the bean-bag mount. It makes changing the unit from vehicle to vehicle as simple as unplugging it from the cigarette lighter. I didn't buy the external antenna and haven't needed it the first time.