Get what you feel most comfortable using.
I've got 2 Janomes (can't remember the model numbers
) the older one I really like, the newer one not so much as it seems a bit noisy compared to the other but it sews well. Both are easy to thread from scratch but if I forget what goes where it's colour coded anyway.
It's rare I thread up either of them from scratch I just tie the threads together and run it until the new colour works it's way through. Now and then I have to thread the needles depending on what size needle I'm using or if I haven't tightened the knots up so it's small enough to go through the eye.