Name: Coffee Amp
Location: Koenji (35°41’56.82″ N 139°38’50.95″ E)
Free Wifi: Unknown
Our Rating: ⭑⭑⭑
Worth it? If you’re in the area.
To get here, get to the fabulous Shin-Koenji Station on the Metro Marunouchi Line, then head west 1 block, then north down the side street directly across from the Super Seven Pachinko Parlor. The shop will be up on your left.
They also have an online store.