Well, after a couple of days running it, I thought I'd offer my opinions so far:
The routing is great. It definitely takes into consideration the size/weight of the truck, as well as if you're using it for Hazmat loads (which I'm currently doing). I started my load in a small town in WV. I initially had it set in car/rv mode. It routed me across some nice country roads which are fine in a car. When I set it to truck mode, the route changed completely, getting me onto the 4-lane highways/interstates to get to my destination.
I then routed my trip, which is going to El Paso, TX. I started with the Hazmat setting turned off. As I figured, it routed me straight through Dallas, TX. After turning on the Hazmat settings, it rerouted me to use the loop around Dallas, which is required.
I haven't had any problems with it, other than it crashing 1 time while I was turning on the Hazmat routing.
CoPilot Truck has a GREAT set of truck POI's (mainly truck stops). In fact, it has truckstops listed that aren't in any of the POI downloads, books, etc that I've ever seen listed, even though the places have been there for 30+ years. However, they don't always show in the correct locations. Many times, especially with the independent t/s's, they appear at the town/city center for their location. One example is the Southfork T/S in Gurdon, AR. It's at exit 63 on I-30. It's at the end of the exit ramp. However, CoPilot has it shown to be in the center of town itself, which is 6 miles away. Another is K & T T/S in Fairmont, WV. It's shown to be on the exit ramp of I-79 at exit 139. In reality, it's 1.5 miles away on WV rte 73. From what I've tried so far, the big-name T/S's seem to be showing at the correct locations.
Another minor issue is the rest area's. Over the past few years, a lot of states have been closing/removing rest area's. But, CoPilot still shows the old locations. Kentucky, in particular, has "combined" rest areas, meaning build one large area in between 2 tiny ones that were removed. CoPilot shows the old (nonexistent) ones, but not the new ones.
All I can really say so far is: So far, so good.