I see huge potential for real life use cases though I suspect micro payment cases and longer term relationships between the two parties may be favoured. Raiden seems perfect for those.
But when one party wants to withdraw their deposit but only that party has presented their balance proof then we're told that Raiden will distribute the balances in accordance with that party's balance proof. My question would be 'how long does the closing party have to wait before Raiden determines that the other party has had enough time to respond with their balance proof?'
Also the fact that any address on the 'multihop' can instigate a withdrawal needs more scrutiny , I'm a suspicious bugger and that seems a to be a reasonably big fly in the off-chain ointment.
Dave