Mig welder questions

Ok I appreciate everyone's input, I don't want to step on any toes because I do respect all opinions and answers. But looking at the Hobart handler 140 it looks like it has the click setting as opposed to the infinite setting being spoke of. Like I said I'm am no welder and honestly know very little about the welders that's is why I'm reaching out to you guys. I'm gonna look at the others suggested but the Hobart was mentioned more than others so I started looking at it first and there is a tractor supply that is almost in sight of my front door. So the 140's you guys are using are they infinite control or are they the click type and if they are cluck type are you having any trouble with sheet metal? Thanks.