Worst:

Juggling two jobs, both being 100miles (~160km). apart from each other: one working for a big VFX studio as a render wrangler getting paid peanuts, and one as Junior SDET for an electronics company. I lasted 6 months on the former as I couldn't handle the insane drive anymore, and stayed on the latter for three more years due to the higher pay and comfy environment. I was really hoping to make connections with the former, too, since I wanted to get into Game Development or into programming cool VFX shit for Hollywood at least. Alas, I digress.

Best:

After I got laid off, I took an offer from a small company as a Graphics SWE that happened to have a terrible reputation. Upon reading glassdoor reviews and a few days deliberating, I just told myself: 'fuck it, I need a job so bad,' and took the offer. Turns out that was the perfect time to get hired (all the previous engineers are gone). Hell, those guys did not even practice proper version control, there was no git/svn repo to be found, and all their projects were in hard drives scattered somewhere in their office. I was a bit astounded. All the knowledge the devs had of the framework the company used were salvaged from tons of uncommented, spaghetti code. It was like the entire future of the company was riding on me and the other new guy that got hired 1 week before for the same position. A year later, CEO promoted both of us, which tripled my salary compared to my QA job.