The simple answer is yes, absolutely stay here.
My stay was 2 weeks, and kt was my first time ever in Japan. Yoshio was so helpful directing me to which trains to take to get to his place. He met me at the station and helped bring my things over. He’s located ~5min walk from the local train station (Uguisudani) and 2-5 min walk from several convenience stores. There’s a 1st & a 3rd floor available to book, so keep in mind the stairs are narrow if you have large, heavy luggage. However, Sato-san was so nice & helped carry it up.
All the amenities (AC, shower, laundry, fridge, etc) were great! Sato-san gave a rundown of how to work everything, but don’t get too overwhelmed because there are directions hung next to almost everything in 4 languages or you can always ask for help.
Another personal praise I’d like to give is that Sato-san was so considerate when I got stuck at airport overnight. During my trip, I took a weekend in between to visit Korea, and I got stranded at the airport on the way back. Sato-san kept checking in on me while stuck, and he greeted me so warmly when I finally made it back that I got a little emotional.
I say all this to say that this place & Sato-san’s hospitality were major reasons why I had such a great time in Japan.
P.S. I thought his English was ok to understand, and I didn’t have issues communicating. However, if you’ve never spoken with someone with limited English, I would suggest watching how fast you’re talking. Again, even if you don’t know a drop of Japanese, you should be ok to communicate, especially through text/email.