Hello fellow Fishies

I have recently upgraded to the elite 7ti and it had the cmap max-n+ micro sd with it (bought it at the Perth international boat show) and the fellow that sold it to me was adament that cmap was every bit as capable as navionics. I am really struggling to get my head around cmap..... i have had navionics for the last 5 years and love it but want to give cmap a fair crack before coughing up 300 bucks for a gold card (I had the navionics app on my phone).

even the simple stuff like my bathy lines how do i get them? do i have to troll and map every where first ? surely not?. auto routing is it even possible? because at the moment it takes me straight lines only ... I dont want to quit if it was something so simple that was an issue. In saying that it could just be the operator...