If that Genze e101 is the 250 watt version, avoid it. Because of its weight, gearing, and anemic motor, the 250 is not a climber. In 'moped mode' it will bog on hills. Apparently, a newer 350w version is available.

You didn't ask, but a 250w motor in a mid-drive configuration can climb steep hills with only moderate rider effort, and do it with loaded panniers. A 250w mid is stronger than a 350 watt hub. If you are going to get seriously involved in ebike commuting, consider the better tool.