I am Ü50 and for my new tele .... LTE card I have ordered this modem. Previously, I had already times a HUAWEI modem in the O2 network and was somewhat familiar with the matter. The installation was very easy. I had only one look because of the passwords in the manual. Since the device permanently connected to the network depends, I can say nothing for Accu. The unit is a little larger than the old 3G modem, but is the display easier to read. The information on the Internet link and configuration options of HUAWEI are also very good and self-explanatory as a rule. The LTE signal is very good and between 3G reception and this here are worlds apart. A great device. Empowered 5 Stars!