It's a no-frills studio apartment in an excellent location for getting to any area of Tokyo quickly. It's good value for the price if you're travelling on a budget. Me and my three friends were comfortable, but I wouldn't recommend having more than four people stay here.
The highlight of this Airbnb experience was definitely the host. Sally was very nice and responsive in offering tips and answering our questions.
My only complaint would be that the bedding and provided towels were perhaps overused or not cleaned thoroughly enough. However, this can be easily addressed though if the host reads this feedback.