I'am usually against Exchanges since they ask you for ID and passport and other real life informations but I thought I could use to know the best just in case I feel to sell my BTC fast .
I would like to know which is the best , also details about it (Documents needed to start exchanging , how old the account should be ? deposit and withraw methods etc )
I'am also not sure how all this works ,I mean once I used Allcoin.com and I had an alt coin which is basically not known atall but I got it instantly when I traded , on those exchange ... who buys the coin we sell ? the website directly or we trade with other people who wants the same thing ? kinda confusing :/
Go with Kraken. They have different levels of verification, and depending on which level you want, they ask for certain documents. Of course, higher the level, higher are the limits as well.
I opened an account with them a year ago so I don't know exactly what are their limits but you will check that easily on the site. I verified level 2 and that was without sending any documents. Just a phone number verification and I provided full address. I think limit is 2000 euros a day with this level.
First I wanted to open with Bitstamp but when I saw I have to send documents to use them altogether I gave up. This is why I liked Kraken. Also SEPA they charge only 9 eurocents, international wire transfers not much more.
And their security audits are rock solid as well, this gives me confidence.
Hope I helped!