Answers:

Metsie
Malmo

Copenhagen really isn’t dangerous, aside from the recent news and things :D I would say Damhostel, there are two nearby, one in Vesterbro, which is arguably in the center still, and one near Amager, which is another city really. Your friend would know ;) Anyhoo, they are pretty inexpensive and you can rental bikes and I think get a free or relatively cheap breakfast. I hope this helps, I don’t know too too much about accommodations in CPH because I lived there, I didn’t visit :D Here is the link:

http://www.danhostel.dk/content/dk/hostel_details?HostelId=2068&Type=Detail

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Mirka
Levoca

thx Metsie(nickname?),
the Danhostel seems to be the cheapest one from all the others in Copenhagen.Is it risky not to book the hostel in advance?You lived,so u may not know,but i’m just curious..
thank u very much!

Metsie
Malmo

Not usually, it’s way off season right now, but it never hurts to book. Sometimes you even get cheaper rates :D