For a modest priced wire welder - it works well. Once I used up the small spool of wire that came with it I switched to Blue Devil .035 flux-core. Like all such welding wires you need to deal with the splatter. Carefully clean what your going to weld to bright, shiny metal and this unit will do the job. Just getting what you pay for these days is a bit of a challenge. This unit, without a doubt, delivers for the price you pay. Wire feeds smoothly and the arc is big, fat and hot. Give yourself plenty of test runs to get the hang of it. If you're an experienced welder, you'll quickly recognize what it is capable of and have no problems. 1/4 inch plate and square tubing can be done easily if you work it at the right speed. Since you only have high and low temperature settings, you don't have the flexibility of more expensive welders that have 4 settings or better yet are completely variable.
I have some doubts about recommending this as a first welding tool unless you're willing to spend time learning how to use it properly. Check out YouTube - there are lots of great videos to get you started on flux-core MIG welding. This is my first welder and I worked very carefully with it until I could do things right. Now I have moved up to a higher-powered unit that supports gas.
One thing for sure - it's a heck of a lot better than the cheap stick welders most people pickup to learn to weld with. Those I can't recommend for beginners.