Sorry to hear about your Co Pilot experiences. have no problems using it where I'm at. Even had it running same time as google navigation on my phone and it routed me on a new street which cut mile off my trip while google nav try to take me on the old longer route.
It might be that the quality of the maps varies by locale, I suppose. In my area, the initial results I got were quite discouraging, as I described. I was really put off by the "region" restriction in the app, which requires you to exit the program and restart with a new region when you go outside the regional boundaries, so that I couldn't make a contiguous trip itinerary from North Carolina to Michigan, even though I had installed all of the required state maps to support it.
I bought the $10 version of CoPilot, and later noted the listings for the $5 Standard, and the $25 Premium versions. I'm wondering if my version is older, or actually functionally different in some way, other than the packages that are included with each edition. Assuming you are using the Standard or Premium version, do you also experience the boundary issue if you try to create a long distance route similar to the example I gave? If you do, I think I'll just give up on CoPilot. If you don't see that issue, I may buy the $5 standard one just to compare behavior and the quality of the maps.
UPDATE: The supense was killing me, so I bought the $5 Standard version, to compare it against the $10 version. There are night and day differences between them, with the Standard version having a much more elegant and helpful UI than the one I purchased yesterday. While functionaly limited, it didn't have the problem with Regions - I was able to load my NC to MI route with no problems. It also found the Costco in Raleigh. The only initial fail was that it still had the screwball non-existent streets in my immediate home area that the $10 version also did. Overall, though, I'm pretty impressed with the $5 Standard, and plan to do a real-world driving test with it tomorrow.
Android Market reviews for the Standard contain some very negative comments, mostly about the lack of features, but in fact, one can easily upgrade the app to the level of the Premium $25 version with a $5 and a $15 upgrade is you wish, and Copilot offers a comparison between the two versions, so I don't really understand all of the hate in those reviews. I would advise anyone to NOT purchase the obviously older and poor $10 version. Try the Standard Version and upgrade if you are happy with it.