Well, there is that (Horizon)
. I knew that they also took on OS, and as such I am waiting for their CS too, to take a huge downturn for the worse.
I do not like Horizon at all, based on my time running Orion CRF On-Road motors in the US, and also Orion Brushless ESC's & Motors. Their CS was always lost, and could never help me, so I got parts from Europe until I Switched Brands - to OS....
The bad thing is that Horizon gets so big that in the restructure I am sure many persons well versed in the product are let go to streamline operations, and well that's never a good thing.
The Old Futaba (USA) it was easy to get someone on the phone and even talk technical, or get some support for settings etc and such.