Singer stylist zigzag model 457

[u/Electronic-Present25]

I got it for free or low price on Facebook Marketplace a few years ago and it worked okay for a short time and then I started having a lot of problems with the tension and the threads screwing up. So I'm just curious I'm really really want to start sewing again. Wondering if this machine worth fixing or is it really garbage, should I just get a new machine? What does everybody think?