This reminds me of my current automobile - a minivan. It wasn't even an impulse; I had researched that automobile for weeks, thought I knew what I wanted. But after driving it home I had such buyer's remorse I wouldn't even look at it or drive it for days. It just sat in my driveway, unloved, unwanted, a big expensive rejected white elephant! But I got over my fit and gave it -- and me -- a chance. And now I love that car! And my family does, too.
Forget the review you read. If you've bought the machine and can't return it, then give it a chance. Sew on it, learn it, get used to it. Berninas are (I hear from people who own them) wonderful machines. I'm betting you will love it!