The most useful feature for me was that I could keep track of my boat's location at any given moment via GPS tracking! It also helps with keeping an eye out when you're away from your phone or computer (you can set it up so notifications are sent automatically).
Sometimes there were issues logging into our account - sometimes this would resolve itself after waiting about 10 minutes but other times we'd have no luck getting logged back onto the system even though everything else worked fine. Try using multiple browsers before giving them another chance if they don't work right off-the bat. We've been able to stay more organized than ever since implementing these features.