Cell phone + internet with BIC SIM/IIJmio

We've just moved to Tokyo and are thinking about getting the home internet and MVNO mobile phone package from BIC SIM/IIJmio. It's really cheap compared with a direct contract with the one of the big three (Softbank, AU, Docomo) but we wanted to ask if anyone had experience with them, as if the coverage/service is really bad and we want to change, we'd have to pay a cancellation fee. We've already read this helpful blog: https://tokyocheapo.com/business/internet/japan-sim-card-options-data-...
Any advice re BIC SIM/IIJmio would be much appreciated!

It is very simple: the only MVNOs providing good service are UQ and Y mobile; all others are garbage. The above-linked article is garbage as well as I have said many times; all it does is compile basic information about prices, etc. (and even that, it does not do well) without sa ying anything about service quality.

I use IlJmio in Tokyo for mobile phone and have no problem with it at all. It uses Docomo. I have just recently travelled through Japan including quite remote places and never had any problems with it.

I don't know about home phone / home internet.

Enjoy your life in Japan!

BIC SIM is service name, the SIM card is provided by IIJ.
I think IIJ is very good MVNO.

at home
I recommend you to use WiMax or Softbank Air.