Yes, I have been using Mistertango since August this year. I load the account with bitcoins and use the card at shops and ATMs. I also use the account to send SEPA transfers to my account in Berlin. I know my German bank has a tendency to close accounts linked to bitcoin activities so I don't use it to receive transfers from exchanges such as Kraken or Bitstamp. Instead, what I now do is load bitcoins into my Mistertango account. Then I do a SEPA transfer from that account to my German account. They see it's coming from an account in my name so no questions asked.

To open a Mistertango account you will need to be verified. You can do this online on their app. They won't open an account if you can't provide an acceptable form of identification (usually a passport or EU ID). If you are from the UK, there is no national identity card so I"m sure it would have to be a passport.