We thoroughly enjoyed our stay at Hilton Osaka Castle. The location is fantastic, with beautiful views of Osaka Castle and an easy walk to the train station, We also discovered some excellent restaurants in the quieter surrounding streets, which was a nice change from the busier tourist areas.
We chose a river view room instead of paying extra for a castle view, and I'm so glad we did. Watching the river, trains and city each morning was a highlight, and you still get wonderful views of Osaka Castle from the breakfast restaurant.
Breakfast was excellent, with a great variety of Western and Japanese options. The restaurant staff were always friendly, helpful and accommodating. While some seemed a little less experienced, their genuine effort and willingness to help was great.
The reception staff were a bit of a down side, they weren't unfriendly, but I felt they lacked the warmth and customer service I would expect from a Hilton hotel. Really just seemed very disinterested compared to the other hotels in Japan
The indoor pool was lovely, although the compulsory swim cap rule was fine but odd when my partner, who is completely bald, was still required to wear one :)
One thing to be aware of is the room size for a third guest. We booked one room for three adults with a rollaway bed, but once our luggage was inside, there was barely any space to move. We ended up booking another room. This setup may suit a family with minimal luggage or a small child