I booked this hotel when I first got to Tokyo, not knowing the neighborhoods or subway system. It looked like it was close to Tokyo Station. It's a little further than I thought, but only one quick stop, on a few different subway lines, so nothing too awful. Or maybe a 15-20min walk. There's not a lot around the hotel tourist-interest-wise, but it was a nice, safe, clean location. I loved this pod hotel so much, that when I came back to Tokyo 2 weeks later, I booked it again.
When you check in, you're assigned a bed and locker. You're given a key to your locker, that also has an electronic key for the door to the floor you're on. When you leave for the day, you trade your key in for the key to your shoes locker (since you take your shoes off and lock them up before coming in to the front desk). That way, you don't have to worry about losing your key while you're out and about.
My only issue is that technically you're not suppose to be in the showers or beds between 10am and 4pm because that's when the co-ed staff come to clean. And they do a fantastic job at cleaning! It was motivating as a traveler, because it forced me to get up early and out of there before 10am. But sometimes I needed to stay later and I wasn't sure if I was going to get in trouble or get someone upset for doing so. But the 2 or 3 times I did stay past 10, everyone was still friendly and no one made me feel rushed, so I appreciated that.