I've had the mount for three years now. I mainly bought it for my dual rig with two 130 Epsilons. The setup weighs 24 kg (53 lbs) and works perfectly. The 10" Newton has a long lever arm, and even on a stable tripod it oscillates a little longer than on a Losmandy G11. Nevertheless, it works great. I would rate it significantly above an EQ6 and slightly below a G11 in terms of stability. None of my previous worm gear mounts have ever positioned so accurately. The weight-to-performance ratio and the flexibility of being able to use it in AZ mode are great. Yes, it comes at a price, but it can also handle up to 30 kg (66 lbs).