I have the first generation. They worked well enough... for a while. Both cameras were pretty big and clunky, although the second generation looks more compact. Battery life on the front, with the headlight on, is worthless.
The Android app wasn't great.
The front camera just inexplicably stopped working one day. It was out of warranty by that point and if you search around you'll find lots and lots of complaints about Cycliq customer service so I didn't bother.
It's a lot of money for something that doesn't last very long.