Not meeting my needs, being a complex to set up tool, having to have calls after calls to be "graduated" and able to launch the product. MBO has a really serious profit based marketing strategy and will not let you try the product before you even get to know it. Really awful support, not being given by the same person and getting you to loose money and time. If you have a small business, this is definetely not for you. It's not for me, for sure.
