Overall incredibly positive experience--and I stayed for nearly 5 months! (I'd intended to stay for 2 months, but was fortunate to be able to extend my stay after breaking my ankle.) Urban Zen is a very appropriate title for the apartment, as it's quiet and peaceful in the midst of a bustling city. It's extremely comfortable and provided everything I needed. Excellent closet space and huge windows with tons of natural light. After the sun went down, however, the overhead lighting is minimal in the bedroom/living area.
Also, there's no TV because there is absolutely no space to put a TV due to the large closets and windows. Not a big deal, though I would've liked to watch some ridiculous Japanese game shows once in a while. WiFi is strong, so at least I could watch Netflix on my laptop using the portable "desk" that serves as a working space. There's no other desk or table, so if you require anything more than a small laptop for work, you're out of luck. I often had a second laptop, my cell phone, and several notebooks spread around me on the couch. I also bought a "Media Bed Tray Lap Desk" and kept it on the floor next to the couch in order to hold work materials and beverages.
Keep in mind that there were various states of emergency during this time--and there still are now--so I was unable to fully enjoy what the neighborhood has to offer. Being on crutches for several weeks didn't help either! As others have mentioned, it is a bit of a hike up two fairly steep hills to get to Meguro Station (a great station to be near). I really like the walk, which includes crossing a small bridge over Meguro River--beautiful during cherry blossom season--but it was impossible during the early stages of my recovery.
It makes a huge difference to have such large windows, which have a good amount of distance from other buildings so you're not looking across a small alley into someone else's home. In the daytime, you hardly need any additional light. Great shades to block out sunlight and provide privacy, so no problem if you want to sleep in late or nap during the day. The little balcony with a rickety table and a couple chairs allowed me to sit outside, get some fresh air and enjoy the view--without having to wear a mask! It's not easy to squeeze out the door to the balcony, though, especially if you're carrying anything.
There is a step up to the kitchen/bathroom area. I appreciated that small bit of separation, and there's a really cool light underneath the step so you can see in the dark. But it's important to know if you have any mobility issues. (It was useful for my physical therapy exercises after I was done with the crutches, but a struggle with a cast on.) Note that the bathroom lighting is activated by motion sensors. I didn't mind, but it can be frustrating to shift positions or wave your hand around while brushing your teeth or taking a bath. The huge bathtub/shower and Toto washlet were worth the trouble!
Yu and his crew were very responsive and accommodating. I'd definitely stay there again if I have the opportunity. Would recommend it for longer-term stays as opposed to just a couple days. Despite the small size, it ultimately felt like a real home.