Yep, I've got two - the old 730 and the 1090 and they both love the Essentials thread. It also works well in my Baby Lock and Singer Quantum. I've heard others say they were advised by Janome not to use anything but Gutermann thread in their machines. Other than that, I haven't come across an complaints.
I've purchased four sets and been using them since they came out with no problems. I find them to be strong, yet leaves little lint. I love the vast assortment of colors, especially for machine quilting. Good luck on whatever you decide. Can't beat their prices, either!
Happy quilting,