Yep, technology is wonderful and terrifying at the same time! It sounds like your new machines does a lot of things automatically which should help with your tendonitis. A lot of the high end new machines are the same.
Can you return your machine if you find something you like better? If not, don't even look as you will disappoint yourself. Does the shop that you bought your machine from offer free classes? I take free Bernina classes for my new Bernina and it does help to get familiar with a new machine.