Iidabashi is a large interchange station on the JR Chuo Line that provides connections to the Tokyo Metro Yurakucho, Namboku and Tozai lines as well as the Toei Oedo Line.
Besides the beautiful remnants of the outer moat to the south of the station (the Canal Cafe is a real gem), the area directly around the station is mostly wide roads and flyovers.
One big plus is the neighborhood of Kaguarazaka, which can be reached from Exit B3 of the station.