Summary: It works perfectly well with Huawei E303 (after Firmware upgrade, v2), despite being shown as incompatible in tp-link's website. Configuration was very easy! (I installed it using Claro's E303 in Costa Rica).
Summary: Finally receive it today! It works great. The signal is strong among our house. And I just using it to write my review! If you are using cable modern, then you need to choose " use Wan only" or " prefer using Wan" instead of following the instruction.