I had two Schwinn bikes from target for I bought a LBS bike. I liked them both and they got me started. The first I paid $200 for and rode for 5 or 6 years, although infrequently, I sold it for $75. The 2nd I paid $80 for, road it for 2 months, and sold it for $100 easily. My point is only that you can sometimes find deals on them, but even if you don’t they’re resaleable.

I never had any issue with either one, although again I wasn’t a frequent rider, i was riding 25-30 miles a week at most. If it gets you started, go for it. You can always upgrade later, but you can probably also find something nicer used for around the same price so just keep an eye out.