I've had the Q24 for about 2 years. I love it. The stitch quality is consistently great. I've had no tension issues at all. After test driving a few at a quilt show, I chose this one. It was the most expensive of the ones I tried. It's set into a beautiful, sturdy Koala table which I'm sure adds to the high price. Another thing I love about it is the stitch regulator. I haven't regretted my decision. Another factor to consider, though, is having a Bernina dealer close by in case you need to take it in for service. Fortunately I haven't had to do that yet. But it only weighs 38 pounds so it's not horribly heavy to get it up from the basement to get it to the dealer.