Spektrum ixsr transmitter

Hi all,
I’m looking to get first hand input on the Spektrum ixsr. With the sale and coupon, I can get it for $550. Yes I know it’s expensive, that’s not the feedback I’m looking to get.
Everyone just says buy mt12 or noble without having tried the ixsr. Let’s say they cost the same, which one would you buy? I’d love to hear if someone has used both or all three.
I’m like 12 cars deep in Spektrum. They all have Spektrum receivers.
For those of you who have the ixsr, do you like it? Was it worth it to you? Do the hall sensors make a noticeable difference? Do you race with it?