easy to setup and functional... probably better use the app with a more modern cellphone because I'm using my older iPhone SE(small screen) and part of the application is obscured at the bottom by the apps 'stop' button.
This devise was included free with the purchase of my new recumbent bike. It was easy to install on the bike and sync with the app that I loaded on my cell phone. It adds a simple addition to the bike to keep track of my exercise program.