coinbase has been overwhelmed with increased volume and rapid fluctuation in the last two weeks. As staunch has said, to have only lost time in the transaction process and missed chances to get in or out at a particular price was an inherent risk in placing the transaction in the first place.
I have also been held up by coinbase delays in transactions over the last few days (though nothing was reversed), so I empathize with the pain. If you know of a more reliable and more quickly servicing online bitcoin exchange, I know many who would be happy to hear about it.
Yes, that's slow, but they gave you back all your Bitcoins. I get that you're disappointed about losing money trying to trade Bitcoins, but if this is how you react to this relatively minor problem you should not be trading Bitcoins yet. Problems like this are the norm right now.
