The ANA Lounge serves as the primary Star Alliance lounge at Osaka Airport. Only Thai Airways has its own lounge (but it's nothing to write home about).
My return flight from Asia was booked as a United business class award before the devaluation last February. It was 60,000 miles for the one-way from Northern Asia. Not a smoking hot deal but still good value. I wanted to try out the new Air China 777 from Beijing to San Francisco.
My first flight was with Asiana to Seoul and from there I would fly with Air China to Beijing and onward.
After a quick check-in with Asiana I proceeded through security and immigration to the lounge. You have to take the train from the main terminal but it's usually a speedy ride.
The lounge looks towards the landside of Osaka Airport (so no runway view) and looks very similar to the Thai Airways Lounge. There are snacks available as well as a good selection of drinks. I rather liked the rice snacks myself.
The lounge has super-fast internet that exceeded even my high expectations of hotels and coffee shops in Japan, let alone a Japanese airport.
For anyone without a tablet on their journey there are free tablets to use in the lounge which is an added bonus.
My flight to Seoul would eventually be cancelled because of electric issues (more about that in my next post) so I got to enjoy the lounge for 3 hours in total. It was quiet and never crowded.
This is the best lounge I have used so far at Osaka Airport. It is not luxurious but is certainly worth a visit.