I just transferred a small amount of money to Simple to try it out for a month or two. I'm only using Simple for checking and that's it. My savings and retirement accounts are with a major bank. But, for checking, I don't care much about interest rates and stuff like that. I just want quick access to cash and a neat way to track spending. I'm aware of various tech issues they have been having, such as systems failing. Anyone here use Simple as their main checking account?