I used to work for a shop that sold Berninas. $Multi-K for almost anything other than the small Bernettes. Superlative machines to sew on. Until they decide to not do what they are supposed to be doing. Was nice having a tech in the other room. Service and parts are expensive, not always available and one needs a lot of them to really put the machine through its' paces. I wouldn't own one...
I have several vintage singers, reliable, mechanical, love them for my needs.
Janomes are nice enough, Eversewns and Brother are good, again for my needs.
Good luck finding one she'll enjoy working with.