if you could pick one item, machine, tool, which one would you take back, or not buy if you could do it over again... not sure i would not take back the SX 12.. i might either buy a differtant one. I know some of you guys may ask why i would take it back.. not sure i would just look around at others. or like i said not buy at all.. i dont do a lot of tile....really somethings i think i want to be good at just a few things... carpet, uphostery, and water damage.... and charge a very good but fair price, keep it simple