CoinMetro is the next big thing in the cryptocurrency world. If you don't believe me, read a couple of reviews that detail what CoinMetro is focused on achieving:
https://coinreviews.io/coinmetro-review/

https://www.icotokennews.com/icos/coinmetro/

CoinMetro is better than Ethos and might even be bigger than Coinbase one day.

If that helped your decision, please use the link below and on your initial purchase, you will get a 2.5% bonus.
https://go.coinmetro.com/?refId=5a545aef94f3b370eb73e26f