When I received the bike, the rear light was not connected with the wire completely hanging out of the light. Though I connected it there seems to be a fault as the rear light doesn't come on. The front light is pretty unreliable as it turns on sometimes and sometimes doesn't. This hasn't been to much of a hassle as I haven't been cycling in the dark, but it will be a real annoyance once summer ends. The bike itself seems well constructed and sturdy and is surprisingly supremely comfortable even over potholes and curbs. It is also stable and handles well. I haven't cycled far on it yet so can't judge its comfort over a distance. Unfortunately the gears are another problem on this bike. Though the range is impressive, the shift is not reliable and several times I've been on a busy road, tried to shift, and found myself in first gear, legs spinning wildly, struggling to maintain control. It seems that when I shift, the gear first goes down to first, then up to my selected gear and this normally takes half a minute of crazy spinning. On occasion, the gear refuses to move from first and I'm stuck on the afore-mentioned scenario. I've checked and the gears are in alignment so it seems to be a build issue as the bike is nearly new. I've waited it out, hoping it would somehow correct itself or that it just needed breaking in but nope, still the same. I've now decided to contact Decathlon and hopefully they'll sort it. Shame as otherwise it's a beautiful, practical machine.