For me, my first 4.CN auction experience was quite unpleasant.
I put up 905905.com on a 7 day auction there, the auction ended at 4510 RMB ($720) with 84 bids in all and an Escrow opened up.
Once the buyer paid to their Escrow, I checked if buyer had an account at domain registrar.
I *PUSHED* the domain to his account and submitted the transfer at Escrow link.
After that, there was a mail from a 4.CN agent asking to provide auth code, I told her I had already pushed the name to buyer's account at registrar.
After speaking to the buyer, she said the buyer says he doesn't have an account at registrar, though she could clearly see the WHOIS email was of the buyer.
When I pointed it out to her, she said now buyer says he registered an account long back but doesn't have password. I sent her the password reset link.
Then she said the buyer has password now but since he couldn't transfer to another registrar before 30 days, buyer wants to push back the name and cancel the transaction.
I told her that there was an auction, the buyer won the auction, paid for it and has the domain in his account. Why would you need to cancel? She just repeated "the buyer cancel, the buyer cancel".
So, the domain was pushed back to my account and escrow was cancelled. They refunded my deposit though. That's the state of affairs at 4.CN.
My mistake: I opted for a push instead of transfer before they told me that need the auth code.
Moral of story: 4.CN seems extremely buyer oriented, they don't approve a transfer UNLESS the buyer consents to it explicitly. Also, I only found them half communicative perhaps due to their English language barrier.
I would certainly love to hear more stories about 4.cn