I would urge you VERY STRONGLY not to trust coinbase.
Although I am new to bitcoin, I've been in the financial markets my whole life.
Whatever coinbase may have once been, it is not, now. My main bank account website, for example, has never had a glitch or an error....ever. Sometimes it's offline. But not even a small glitch, much less a fundamental error.
In three days on Coinbase. there are many glitches and problems. I've connected my bank account, for example, and bought a few bitcoins. Suddenly, there is an error not allowing me to make purchases, and pop-up screens directing me to send personal information to THIRD PARTY WEBSITES (of the kind that would enable anyone with that information to commit identity theft.)
48 hours ago, the tech person said the problem would be resolved. In 48 hours, no resolution, no word.
Also, somewhere on the site I read that they claim the right to TAKE BITCOINS out of your wallet, themselves, in certain circumstances. THEY CAN TAKE YOUR MONEY, it would therefore seem, from YOUR Wallet.
Or, should I say, "Your" wallet.
My best investments have been based, at least partly, on intuition. And I smell a BIG RAT at Coinbase. Whatever they may have once been, they are no more.
DO NOT TRUST COINBASE, or you will be Mt. Goxed, I promise you. Or be a sheep, don't think for yourself, get fleeced, and then slaughtered. Your choice.