I have a Stylist 774 that I bought back in 1975. I used it up until I bought a Phaff, ten years ago. I sewed everything on that machine and I'm very sentimental about it so my opinion of it might be a bit biased
.
The only problem that I ever had with it was bird's nest on the bottom fabric but I found out later that it was because I had threaded it incorrectly.
I now have a collection of the older vintage machines and don't even use my Phaff!!