I have a janome 10001 and love it. I have an Elna 8000 love it also.
I have a National serger since 1994 works very well with no repairs, Baby lock Evolve serger, an Old Elna serger,
a 1958 Singer Industrial model.
it depends on your individual needs and how you feel when you test drive it. I spent 8 hrs in the store before I bought my Elna, I just wanted to make sure. LOL