The apartment is quite a walk from Sakura-Shimmachi station, abt 20 mins with luggages and 15 mins without (you can do it in 10 if you walk fast!). There's a nearer train station but it will require changing of lines to get to Shibuya so we preferred to use the DT line (the DT line also connects to Hanzomon line which is very useful!)
We got the basement for the first 2 nights and personally, we didn't like it as the toilet was separated from the apartment and we only realised later how troublesome this could be, especially as there's no sink in the basement. The wifi connection also isn't very good down there and the water heater was rather inconsistent (we had to wait for it to turn warm again a few times). We also found it colder than we'd like but it was okay.
The other rooms (301, 201) were very nice and spacious (we had about 2-3 people per room) and well equipped. Loads of space for our things and it had a kitchen and washing machine as well, all very useful.
Each room also had a pocket wifi. The one we got from the basement worked brilliantly, brought it everywhere we went and it would last the whole day. But the pocket wifis from the other rooms were not working well, tends to die even when the battery is fully charged.
We met Ryan a few times, he was kind enough to help us with the heating as we felt it was too cold in the rooms. Can always message him if you have any enquiries. It's a good place to stay at if you are a large group, but might want to consider the walk to the train station.
Thanks!