After suffering from GOX refusing to give me my money or tell me why for 7 weeks I went to bitcoin.de. I can now sell BTC and get the cash within 3 work days max. No excuses, no BS, lower fees, and as it works with direct SEPA transfers you never have someone else holding onto your money.
If you want to sell BTC for EUR GOX is a terrible way of doing that. Bitcoin.de works great for me. I never tried bitstamp.
Here is my referral link (which gives me 10% of the 0.5% you pay on future transactions at no cost to you):
https://www.bitcoin.de/de/r/hevpfs