Here’s my 2 month review
I would not recommend this for a racing application
the functionality of the receiver (arx one) is fine and it works great but I had two issues.
the slots are too loose for the plugs and I had a servo come unplugged. I ran a zip tie through the wires to avoid this happening again.
the second issue was a brown out issue where it lost signal. Then you could like tap the receiver and the car would do all kinds of weird things. This cost me a bump up in one of the mains.

these now cost a decent amount from Amazon so the savings isn’t worth the downtime.

just figured I’d share my experience.