I would say even having done your homework, put in the time, triple checked it....things will likely still be off/wrong, etc. It's baked in. To what degree is the question. Can people live with it is another. For me it was a no. I feel tremendous satisfaction and relief in selling off my 5 Stars. I feel lucky to have been able to do so honestly!Stay away if you haven't done your homework meticulously and if you don't have the necessary experience, otherwise things will go wrong.