Hello. I live in Sweden and I,m going to start to do some mid-long time savings in bitcoins. I have done some research and I,m thinking about buying then on either Coinbase, Gemini or Blockchain.info.
What do you guys think is the best alternative? What I have seen it seems to be Gemini but people say that it takes ages to verify you account there and should I really wait that long I mean bitcoins might skyrock in price when I,m waiting. should I move the bitcoins I,m going to buy to an offline wallet? If that's the case which one? And is there a fee for sending my bitcoins between any of those places and my offline bitcoin wallet?

Thanks for helping