My machine is an old Brother that I've been using for about a year. It was a hand me down from a friend's mom - who bought it in 1978. It has never failed me. The one time I had to take it for repairs was for a simple tightening of the parts and a little oil-up. It's my baby <3
I don't know much about sewing machines, but I heard a lot of good from the Bernina and Janome brands; Singer is good if you can get it old, because the quality dropped in the more recent years. This may help: [link]
It looks so hi-tech! Here's me imagining an old fashioned Singer and this pops up in front of me! Unfortunately, I don't know much about this machine, so I can't give any feedback, but I'm sure you know how to go about getting the information you need.
The irony is my machine WAS a Singer, just a modern one with very unreliable mechanisms. The timing got thrown out 3 times. I tried a Janome machine and F&R in the shop, and it went over denim seams SO EASILY. :___;
I bought my Singer machine from a yard sale like 10 years ago and it was from the 60s or 70s and it's still works like a charm. I know people who own a Pfaff but I think they're more expensive. Especially if you're looking at a basic machine.