I can't tell you about the high end machines, because I only have a Singer that I have had for 12 years and I use it about everyday. I don't machine quilt though only use for piecing and I love it. I have hauled it all over the country and never had any trouble. It's not a fancy machine , just middle of the road. Some day when I am too old to hand quilt, I might look for a different machine, but for now I love my little portable singer.
Ninnie