I do not like it, I think it cost to much for the little it does for me.
I like to use DeLorme Street Atlas, currently using 2008, in the past 2007 and 2006. Most people use either Delorme or Microsofts product. Which ever product you use, it must always be checked against the truckers atlas for low bridges and restricted routes. When using any GPS and routing software you have to be smarter than the software.
I have a copy of PCmiler 18, the industry standard for trucking routes. I had PCmiler send me to a low bridge in up-state New York. The same low bridge was not listed in the truckers atlas either. You must still be alert and able to think while using any software.
Remember that it is only a tool!!! They can break at any time, you should still be able to route yourself with a paper map.
I use PC Miler18 also. When I come to a low bridge ro restricted road that isnt in the program ill note it in the program with either a restricted icon so itll route around it or just note it. I also send ALK an email so they can update it in a future release. I still use the road atlas and other things but pcmiler helps me alot.
If you have any questions about the pcmiler shoot me a PM or email me. Be glad to help ya.