I liked the idea of simple, but didn't like the fact they couldn't send me checks to use. They'll mail them on my behalf but not send me an actual checkbook to hold onto for one off situations. I rarely use them, but sometimes contractors or landlords prefer this method or charge exorbitant fees to use a credit card.

Also if I come into a decent size amount of a cash payment, I can't walk into a bank to deposit it. Mailing in straight up cash seems super weird to me.