We recently stayed at the Shibuya Excel for 5 nights. It was our first time in Tokyo and I must say, this hotel is great! The location is awesome and is right across the street from the shibuya station, which has basically every train line you could need. The hotel overlooks the main square, so we had a great view, but it was still really quiet at night.
The rooms are small, but not unbearable. They are very clean and the bathroom was nice. There was free wifi in the room and it worked great. The hotel staff was friendly, but didnt speak english that well, so we didn't use them a ton for recommendations. I would definitely stay at this hotel again and would highly recommend it to my friends. The overall experience and price were very good!