Using doppel has helped me going to bed easier and lets me concentrate on my tasks at hand, when it works.
However the device sometimes does not recognize the gestures. (The battery indicator gesture seems to always work though) There have also been numerous times, where the device just shuts itself down without any input from my side. This might be because my sleeves hit the gesture panel, but even when I push my sleeves up, so that it does not touch the doppel, it still seems to turn itself off without any input. Syncing pulses through the app does not work half of the time. Your doppel can only save two bpm profiles, and if you want to use a different one, you have to do it through the app. The problem is, that when you sync a different profile to it, it sometimes does not save it when you close the app.
I really like this product, when it works, but because of the constant troubleshooting you have to do, I can’t really recommend this to anyone who expects a finished product. Even I sometimes don’t want to use my doppel, because the constant bugs make it not fun to use it at all. Right now doppel seems to still be at the experimental stage and I hope that Team Turquoise will improve the device for their next iteration.