I just recently purchased a brand new Arrow-X and I have to say the performance is incredible.
It looks like the Tomahawk physically, but has not quite that long of a range but the price point is quite less.
The RX is SDI but the TX right now is HDMI, but they will offer an SDI version next month, which I will be upgrading to.
It kicks the but, range wise, on the regular Arrow and also on the standard Bolt.
I had my Arrow-X on a Disney commercial where we moved locations quite often. Never once did I hear that the village had lost video. Solid as a cable.
On my setup I had the regular Arrow for the directors monitor and the 1st's monitor as well, and had the X for video village. On the X's receiver I also had the Array antenna.
I had a moment for a little test, where I walked away from the village and my 1st stayed there with his monitor for comparison. After a while the signal on the regular Arrow was lost. I kept walking and the X kept going. I lost sight of the village around a bend quite far away. I decided to head back when my AC informed me that the connection was never lost.
I don't know number wise what that distance was, but unless it's something really particularly different than regular shooting, I've never been that far away from the village.
I have to say, finally there's a wireless system that works solidly, connects super fast (15-20 seconds), and it's built solidly. Looks great and professional.
I'm very pleased with this purchase and it has already become a hot item on my rentals.