When I used the arriva appt regularly where I used to live i never ever had any issues with it. In fact it was so accurate I could sometime get an extra pint in the club , neck it and still catch the bus. Now this GNE one, where do i start............. the one that comes to mind is clicking on the bus stop i'm heading to and it says bus in 10 minutes, tracked. Get there and it says arrive in 7 minutes............. as it pulls away from the bus stop! I did tweet GNE to ask if the bus stops were accurate ( the bus left 3 minutes early by my watch too) and they couldn't give me a straight answer . Plus the bus i missed wasn't tracking visually on the appt but then appeared near Salisbury at the team valley about 10 minutes later!