i have never tried with xrp, i had that thought once but then I sold my xrp. I withdrew Bitcoin yesterday and everythng was smoothly. its just i think they to many confirmations, once you confirm the tx like 2 times in the site, they send you an email to confirm the withdrawal....I hope you get your coins quickly... if xrp keeps its pump at that rate you may end with a lot of money....
RE: Poloniex a full