Being in the welding supply business, I will tell you to buy QUALITY, the cheap stuff, may work, for a while, maybe forever, HOWEVER, if it breaks down and you need parts, good luck. There are Miller, Lincoln, and Hobart, Linde/Esab machines out there 30,40,50 years old that you can get parts for.
That Lincoln stick machine that was pictured, there are thousands of those out there, they have been around for 40+ years, still going strong.
For an entry level stick machine, you cant beat them, and in that catagory is the miller thunderbolt ac/dc also. Used Miller Dialarc 250 are another, almost bullet proof! Whatever you decide get and ac/dc preferably in 220volt(easier on the wallet as far as electricity goes) and some welding rod prefers DC(7018, you can get an ac7018, but it doesnt run nearly as well as the DC version) Just my .02