The reception characteristics are average, compared with a Nexus 7 LTE on the same network. LTE transmission is so far not once come about even though this is available in the center of Munich.
I had the mobile use (car) already several complete crashes that could only be resolved by removing and reinserting the battery.
One of the key features (for me at least), the 5 GHz WLAN mode does not practically. Only with my age-old Siemens Notebook I can connect with the Huawei, the phone (Galaxy S2) reports authentication failure (WLAN Key is correct!), The Nexus 7 LTE is certainly not the E5372. A firmware update brought because there is no change. That leaves only the overloaded 2.4GHz band. Wireless range is ok, several meters range perfectly.
The Android app is good for nothing, text messages are displayed on occasion, write SMS is not supported, only goes through the web interface. The storage on or reading from the Micro-SD is rather cumbersome. From a mobile NAS can be no question.