Me and my husband travelled from the UK to Japan and we stayed at Aiko’s place. Aiko and her staff were very helpful and friendly. Whenever I messaged I was always given a response within 15 minutes. As for the apartment it’s just what we were looking for - close to train stations & convenience stores (all within a 10 minute walk). The apartment itself was clean, well equipped and perfect for 2 people. The bed and pillows were very comfy. The washing machine was available for our use and we dried our clothes on the balcony, no launderette needed.
The only negative I will mention is the neighbours are very loud even in the night. Obviously this is no fault of Aiko and her staff but sometimes it did take us a while to fall asleep due to the noise.