I'm a software developer. I know how to use a computer. Complex software doesn't bother me (Final Cut Pro, XCode, etc). Yet, I've been trying to use Basecamp to plan a ~7,500 mile trip and I find it nearly unusable. It is exceedingly slow on both my i7 desktop with Windows, and my 2013 Macbook Pro w/Retina display. I'm using it with a somewhat older Garmin GPS, but I figure that shouldn't matter too much right? Is there an alternative? I'd use Google Maps for everything, except it doesn't do everything I need.