Even though I'm using the free version, the support in their forum is fast and good. I had a minor CSS-issue with the output of the route-planner, but the dev helped me several within a day, even outside office hours.
Turned out the CSS I had an issue with was within Google's rendered code for the directions. The dev pointed me to where and how I could override this and it worked like a charm.
Need not only a contactform but also want to give your customers directions? Then this one does it all.