We stayed at this business hotel for a leisure trip to Tokyo. It is conveniently located in Shibuya, next to Shibuya Station, so you can take the Narita Express all the way into Shibuya Station and then walk to the hotel if you wish. If not, it is less than 5min by taxi.
The hotel itself is comfortable and well maintained. We opted for one of the up-graded rooms with a king bed, which had a lovely view over tokyo. The bathroom was large and well-appointed, with a large shower and bath.
The reason why I gave this hotel a 3* and not a 4* was because of the lack of certain amenities you would expect in a hotel of its class as well as the inability of the staff to give accurate directions. This is in comparison to other hotels we have stayed at in Tokyo.
There is no complimentary WI-FI for hotel guests, even in the lobby / reception areas. This is also the first hotel I have ever stayed in that does not provide complimentary tea/coffee in the rooms. It is available, but please do be aware that a teabag is charged at about 400 yen / US$ 5. I thought that was rather bold of them considering the room rates they charge. Also, although the hotel has a pool and gym facilities, it is not complimentary for all hotel guests - only those on the executive floors, otherwise, there is a fee.
The biggest let down for us was the inability for the staff to provide accurate directions to restaurants etc. The address system in Tokyo is notoriously difficult so we can understand small inaccuracies. However, they were not able to accurately direct us to the New South Entrance of the Shibuya Station, which is about 150m from the hotel. This entrance provides direct access to the platform for the Narita Express train. They conveniently omited to tell us that this entrance exist, instead tried to send us on a round-about route through the main station, even though it is clearly marked out on the map of the station they provided us. When asked about this entrance, they recommended that we take a 5 min US$10 taxi ride to the station. Anyway, we did not have much luggage, so we took a chance and seached for the entrance ourselves. For those interested, you go up the staires on your right just as you pass under the train tracks straight up from the hotel, and it is 50m down the road there. It is incomprehensible that the hotel is not able to provide directions for such an easy route to a station that I am sure 80% of their hotel guests would use.
Our main impression is that the Cerulean is mainly interested in business clientele and not the leisure traveller, which is a pity, as it's great location would suit both.
This review is the subjective opinion of a TripAdvisor member and not of TripAdvisor LLC