I just completed my first repair job with this today, I am pretty impressed with it, I was used to a 220v miller unit I learned on at my highschool, and the hobart produced welds 98% of the quality the miller unit did.
Overall I couldn't be happier with my purchase, I bought this specifically for repairing the z and it works perfectly.
Everything I have read in my reasearch says that flux cored wire is not really acceptable for body repair, Also Tig isn't either. It produces cleaner welds but it is too slow and heats the metal too much and causes warpage.
PS, it came with a broken hatch latch, and I called hobart/miller customer service and they had a replacement part to my door in 3 days. Very easy to deal with.