I used to be an avid Kanda customer back in 2006. It has been around 5 years since I had gone back. Kanda was extremely popular and had lineups going outside. I think the demand got so high that the opened up a few Kandas here and there and everything went downhill from there.
Unsanitary, not fresh, and the orders given were always wrong. When you would confront them, them would grab the correct one from the other table (even if it was already picked at) and just toss it on our table.
I got food poisoning TWICE. Never again.