I had a sealey 150 turbo really rated it had it for a few years using it a few times a week,only sold it as I needed a more powerful machine,

If it was me I'd look out for a decent 2nd hand welder rather than a cheap new one, as a good machine will make all the difference best way the learn is to have a play watch some vids on youtube have a read on the mig welding forum and away you go, I was told f you can piss you can mig lol