I started using coin 18 months ago. Initially a lot of places could not process it, had to carry cards. The last 6 months it has been working great so I left cards at home. I am now traveling and it is not working. Ever try traveling with no credit card? No phone to call Coin, only email. 48 hours later, still no contact from them. NO customer service. I'm done with it and cannot recommend it. Just glad I got in early and did not pay full price.
Bottom Line: No, I would not recommend this to a friend