I'm thinking the OP was just stating that for a small aluminum repair, aluminum stick is a cheap good fix. As far as aluminum mig welding goes, everybody that can mig weld steel, can mig weld aluminum, and it does come out a lot better, but to stick weld aluminum, you have to be good at stick welding, and then it's a challenge. Then you have the cost set up for aluminum mig welding.
I've welded a small aluminum project before with 1/8 stick on 1/4" thick angle bar, worked ok I thought, the welds was strong and lasted, I think I set my DC welder on DC straight, on the stop and starts, I cut the end of the rod for a better arc re-start.