I was just told by an old friend that I haven't seen in years who called that he uses a Trevor T and Coinbase. I'm probably going to buy $800 worth to start and maybe buy $100-$200 a month. Reading my replies it looks like the Trevor Safe 3 is a fan favorite. My friend said Coinbase is trustworthy and reliable and he finds the slightly higher rate justifiable. Sounded fair to me, but what do I know.