StagePlotMaker has been very useful as a communication tool for creating quick and easy stage setup diagrams to show the desired position for each band member, which band members need a power outlets, as well as each person's monitor preferences. It's been great to be able to provide those stage plots to venue owners and show producers. They have all been both impressed and thankful for the information, and they are usually happy to oblige!
As for all of the negative reviews, I'm completely stumped! If you want help, you've gotta ask for it or you're never gonna get it. And this is the wrong place to be asking for that help! Anyone who knows anything about the iOS App Store knows that developers have NO WAY to respond to reviews. You need to contact the developer directly for assistance. I have been a long-time user of Arlo's other apps, BandHelper and Set List Maker, and anyone who has ever reached out to Arlo for assistance with a problem knows that he is SUPER helpful and quick to respond to issues with his apps. (And while I'm at it, the developers are not able to provide refunds. You need to contact Apple for that! I've had very good luck getting app refunds when it was justified.)