One thing that was not obvious for me was how to withdraw: after I've won I wanted to stop playing and withdraw my bitcoins. I clicked on the withdraw link at the bottom of the page and there my bitcoins were shown under "Total balance" and "In-game balance", but not under "Available for withdrawal."
It took me a little bit to figure out I had to go back to the table and click there on leave.
Yeah, this flow has always bugged be somewhat too. I am thinking of allowing users to leave tables from the withdrawal page which would hopefully alleviate this. Thanks for the heads-up - I'll prioritize this change!
Leave is disabled during a hand though so maybe you should just put the amount on the table and a link back to the table. Or I suppose check to see if a hand is in progress and make it a "back to table" button if so and a "leave table" button otherwise.