When we visited Hong Kong, we took China Airlines(CI) from Osaka(KIX) and they invited us to use the Sakura lounge by Japan Airlines(JL).
When you take China Airlines(CI) from KIX, the business class lounge will be Sakura lounge by Japan Airlines(JL), they have a partnership with each other.
I took a video on how to get to this lounge from the passport control.
It will be more useful for passengers with pushchairs or wheel chairs as we were taking a pushchair at the time.
The inside was like this :
There were a variety of food and drinks.
The JL logo was at the bottom of plate.
Unfortunately the socket was only a Japanese-format one, not a universal one.
Fron the window I saw Philippine Airlines(PR) and Air France(AF) staying.
From the window I saw Philippine Airlines(PR) and Air France(AF) stationary.
I walked around the lounge :
How to connect to Wi-Fi
You can select ‘JAL-Lounge’ SSID.
No password is needed.
Uploading : 6.56Mbps
Downloading : 15.60Mbps
It had good speed.
I think this lounge is the same size as the one by ANA(NH).
I prefer lounges where you can see out of the window to look at different airline fleets.