Thanks. Si slow is fine or do you guys use instant?
In the past year, there have been many issues with freebitco and sometimes withdrawals were delayed. Since in the past days, I haven't read any reports complaining about dealyed withdrawals, I don't think there's any issue with withdrawals now.
If everything works as expected, an instant withdrawal should take up to 15 minutes and a slow withdrawal should take up to 24 hours.
Note that this is also assuming your withdrawal isn't flagged to be reviewed manullay. If your withdrawal is flagged for a manual review, it will probably take longer time to be processed.