Lincoln has sold literally millions of those AC225 machines. They do what they are supposed to do, no doubt about that. I would suggest if you don't want to upgrade don't ever weld with a DC machine. The arc is much easier to start and smoother to run. With a DC machine it opens the door to rods such as 6010 and real 7018. If you look around you can get good deals on Lincoln Idealarc 250 or Miller Dialarc 250 machines. Both are AC/DC output and bulletproof welders. Or you can go the DC inverter route, more money but my Miller Maxstar 140STR will stick and TIG, runs real 1/8" 7018 great and weighs about 10lbs and is the size of a 4 slice toaster and will run on 110 or 230 volt power. Lots of options out there. Enjoy your AC225, they are great machines