I'm headed off to Oz with the family and we booked FRA-PEK-SYD on miles in Business - will the use of miles impact our ability to enter the business lounges in PEK?

What amenities are there in the CA Business lounge in PEK? I've searched the CA site and can't find any details for PEK, they keep dumping me out to the BCIA site. Are there showers and luggage storage? We've got the all day layover and plan to go see a couple sites in the city before returning for the PEK-SYD leg and would like to clean up first.

I gather from reading a few other threads that both the 777-300 on the FRA-PEK and the A330-300 in the PEK-SYD leg are full flat seats, seemingly confirmed by SeatGuru. Any "gotchas" to watch out for?