Before we tackle the software, let us acknowledge the hardware. The Huawei E5372s (often including sub-models like E5372s-32, E5372s-601, or E5372s-155) is a category-defining MiFi device. It supports 4G LTE Cat4 speeds (up to 150Mbps download), has an OLED display for signal and data monitoring, and houses a 1500mAh or 1780mAh battery (depending on the revision).
To change settings (APN, Wi-Fi password, data limits), you don't need a driver – just open a browser and go to: