I just researched them, going to do more, but it has shot up to the top of my list of potential software "purchases". There are some potential costs with this plan such as flat fee of 19.99 if 50% of your business is Medicare (which is true for most) and .025 per claim for payors that don't accept electronic claims submissions (and they send paper for you), or if they are not contracted to submit to the payor themselves. All in all it still seems pretty good.