A friend of mine has one of these and asked me to "fix it" because I'm a "sewing machine expert" (no, I'm not!).
I was not at all impressed. It's a chain stitch machine, and I couldn't get it to work properly at all. Seems like even if it worked perfectly it would be incredibly awkward to use and difficult to get a decent stitch length. Like trying to FMQ a straight hem.
I agree with the others - a real machine is much more useful and less frustrating. I see decent basic machines at the thrift shops for around $20 all the time - I would go that route. Even hand stitching would be less hassle, I think!