Love the Necchi. Makes me wish mine was a ZZ machine. My ThingFive bought me my first vintage machine and is now chasing down a Redeye for me. Gotta love those kids.
I have a similar Necchi Alco. It sews really well. I keep forgetting about it, because I don't use it that often. Nice machine. Yours is in much better shape, but mine still sews fine.