The place itself was nice, location was good, and pocket wifi provided was very helpful.
However, I do have 2 gripes about this rental:
1. The place was not cleaned before we checked in, even though we only arrived past 6pm when I said I was going to check in at 3pm. The owner was responsive though, and immediately sent cleaners after I called her about it. Nonetheless, that still shouldn't have happened and it was an inconvenience for us to have to vacate the place at night for some time.
2. The list of rules sent prior to the trip only mentioned that we should not throw the garbage out ourselves since Japan's trash rules are complicated, and no other instructions were given to us on how to sort the trash. So we assumed that the owner/cleaners would take care of sorting to ensure that it was done right. We were only informed the night before checkout that we had to sort the trash ourselves when she emailed checkout rules. Since this was an extended stay, that meant we had to scramble at the last minute to sort days' worth of trash. That information would have been really helpful at the beginning, and we would have happily done it, but it was a major annoyance at the end.
Last hopefully helpful information for anyone staying here: When exiting the metro station, look for exit C1 :)