it works, but could be better

The device is, in principle, not bad, and work. The software for iPhone is also updated already 2 times within a month, is always better. The battery could certainly last longer, but the device is, after all, quite small. The thing is me most disturbing that you can not see the device, whether it is on or off. Is me several times happened that I had thought it would be and then when I wanted to use it, the battery was empty. The Garmin must necessarily solve better !! The LEDs should blink more frequently, so that you know that. Otherwise, I am satisfied so far with the device. But still currently only 3 stars because that's even better!