I am certainly no Mastering Engineer, but I have been involved in tracking and mixing for the last 18 years, and a musician for over 40 years. Presently, I, and my fellow musician friends just record for fun as a hobby. Although my long-time friend and musician and I are working on a CD of some of the old cover songs we did in the 60's and 70's for posterity's sake. Out of interest I downloaded this AAMS software (I haven't purchased yet) and have been running a couple of mixed cover songs I have completed through this software. I used an original copy of the song as a reference and was surprised at the results. To my ears it sounded pretty well balanced and good enough for our project. My point is, everyone on these Forums are recording music for many different reasons, some professional, some semi pro, and some just as a hobby. Of course a professional mastering engineer could do better, but for those of us who cannot afford, or justify the cost of a Pro these programs do provide a decent service. And, we can learn a lot about the mastering process. What can be wrong with that?