Barry,
I have read some of the other replies, and I disagree with some of them. When someone says that it's good enough to get by, is leading you down the path, of, I wish I would have purchased the big one. Why, you say, I and many others have been down that road, and it is a waste of good money.
Like some of the others, I started out with the 225 Lincoln buzz box, and I learned somewhat. I then went to one of those cheap wig welders, and it did not hold up. What I have now is the Lincoln 175 PLUS, with variable voltage/amps, and variable wire speed. Some choose MIG over FLUX. Most machines will do both. They both have their place. MIG with say Stargon gas , will let you do some decent welding. MIG will let you weld very thin metal. FLUX will not do as well on thin stock.. Flux can well thicker metal on a single pass, with lots of smoke. . Some like the MIG because of almost no spatter, and slag to scrape off. However, if you use CO2, you will have some spatter. I would recommend that if you have the bucks, or a credit card, go for the Lincoln or Miller, something around the Lincoln 180. Sure it is a large investment up front, plus the gas, and I would recommend that you purchased the tanks. Automatic welding helmets are a good investment, If they ever fail, they will only go to a number 4. I check mine by looking off to the side when striking an arc. I did the rental thing for a long time. Big mistake. Most people starting up welding think they can get by, with bare minimums. I would also take that welding class or have a good friend show and tell you the complete story. On the subject of parts, and repair, this is another reason to get a name brand welder. Within 30 min, I can find about 4 welding supply places for parts, and answer questions. If you don't have 230 volts, that is a must for the larger welders. It is worth the cost. If you get the best up front, you probably will not hear yourself saying I wish I would have bought the other one. I am not an expert, but still trying hard. Try Ebay for welders, and parts. You might even have a friend that wants to upgrade, and will give you a good deal. Check them all out before you decide. We should all get smarter with age.