I have the Crown Jewel III with robotics. I'm really just a beginner but it's easy to use and I've had absolutely no problem with it. I bought it used from my local dealer. It had been owned by a friend who passed away and her husband took it back where it was purchased and I bought it because I knew it had been well cared for. I thought that the Crown Jewel had been discontinued in favor of another machine but my memory isn't what it used to be. Babylock has online lessons that are very informative and complete. I have no experience with any other machine.