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Pro Possibility to get a free forever account
If you sign up before the official pricing is announced, you can get a "free-forever" account. It's limited to 500 connections and 10GB data transfer per moth though.
Con No official pricing announced
On their pricing page in their official website, it's said that Backand will announce their pricing by fall 2015 but as of December 2015 it has not been announced yet.