Kokko Hotel is very centrally located - 10 min each from Ginza and Tokyo station. Excellent base for exploring Tokyo or day trips. They have all amenities, including coin laundry, etc. Holding your luggage for free is available and makes life easier. It is in a bit of “dead” street during evening, but across very useful 7/11.
Disliked: It is a very small room with a small bed for 2, graced by very uncomfortable pillows. The biggest issue of the hotel is cleanliness: they don’t do too much, including in the bathroom area where you find hairs. Room was dusty, visibly. It is a huge hotel with a massive turnover, but they simply should do better.