My stay at the Toyoko Inn Nishikasai for 7 days was very enjoyable. This hotel has been quite well maintained and everyone was courteous. There is free water, tea, and coffee at the ground floor along with an ice machine for ice cubes. There are also vending machines for drinks and washing machines/dryers for those who want to do laundry.
It's location is also good for those who wants to visit Tokyo Disneyland (the hotel provides a complementary shuttle bus to get there). The breakfast on offer can get a little repetitive but no complaints from me. Note that they only do cleaning of the rooms once every three days. I'd recommend this property for those who want to stay in Tokyo.