You can take the Skyliner from Narita Airport which is what we did, straight to Ueno Station. It's about a 10-15 minute walk from Ueno Station to the hotel. If you have a lot of stuff, in Ueno Station you can also transfer to the Tokyo Ginza subway line and get off at Inaricho which is one stop away. The hotel is then about a 5 minute walk away. The hotel is located in a more suburban area and you can see the hotel as you walk down the main street from the station.
The room is tiny compared to western standards but was just fine for us. The hotel is 9 floors and they are a eco-friendly hotel so they don't change linens and towels. We had a full size bed and private bathroom. There was also a little fridge, a sink, hot plate and a hot water maker in our room.
There are several convenient stores nearby to stock your little fridge.
I love that Japanese hotels provide shampoo, conditioner and body wash in their hotel rooms. Tooth brushes and razors are also provided in the room. There also had a grab and go area in the lobby for tea bags, shower caps, lotion, etc.
The hotel provides wifi, which is decent but not high speed. The hotel also does have breakfast.
Oh and I forgot the best part, it's a non-smoking hotel.
The front desk is not 24 hours. They open at 8am and close at 10pm so make sure you check in by then. If you go out, you'll need the security code from the front desk to let you in the hotel.