This thing is great for flux core steel. I am a beginner welder, and I didn't want to spend a ton of money on a welder right out of the gate. It's wonderful to be able to weld steel for so little money, and on a regular 110 volt circuit. I had literally never welded before I bought this machine. I have now crafted several projects with this, and with a minimal of practice really feel like I have dialed it in to get some pretty nice-looking and strong welds. Keep in mind that flux core welding will never yield the much-desired "stacked dimes" look, so if you are hung up on such things then you'd best look for a welder that allows gas shielding. But if you are happy with less attractive welds (by the commonly accepted definition), I highly recommend this welder.
The included mask and brush/hammer tool are pretty worthless. It's nice that they include them, and the mask would be good for observers or helpers, but you'd really better get a mask or helmet that can mount to your head to work with. Holding the handle of the mask while welding would really be a pain. And the hammer/brush combo doesn't feel very durable, nor does it have enough weight to really be very adequate. I am not reducing stars on my rating for these things, because these are really just bonus items.