Several handred net charge each month, not portable router, slow internet speed, network flow exceeding, etc ? Are you still worrying about it ?  Lcose smart wifi box and a wireless network card, cost around 200rmb, similar to your home net broadbrand cost. You can  enjoy the internet with several devices at same time. No need for net cable which will influence home decoration. New smart wifi device,  it can work as a 4g net tool when you are at outdoor or in your car. It can work as a emergency powerbank, an outodoor table lamp, a wireless flash drive. It is on market now with low cost. Do you like it ?