There is also the Travelers Lounge, which is Priority Pass or available on a pay per entry basis. This is airside, which is useful given you only have a 2 hour connection. The lounge isn't amazing but does have pretty good showers and they provide towels etc.

http://www.plaza-ppl.com/hk_en/lounge.php

Access for cash us HK$400 (not worth it in my opinion) or HK$150 for a shower only (which is worth it in my opinion).

Otherwise I'd be tempted to just head for Starbucks or similar, gien how long you have.

For the OW lounges, my favourites are the CX lounges, especially The Wing. Both The Wing and The Pier have separate F and J sections (and The Wing has totally separate entrances, though you can walk from one into the other once inside).