This is the best place for travellers and business man sticking around Tokyo. There's direct train from NRT airport and you can also go to Tokyo by the same one, takes only 25min. Around Funabashi station there are tons of bars and Izakaya, cozy restaurants...
It is also pretty close to Makuhari Messe and these bay area.
You have a great view from 7th floor which allows you to seat on the best place for the fireworks festival on July.