Well I have, and in my experience, the extra money spent on RH Superlights is about the best performance bang-for-the-buck out there. A bargain, really.

RH Superlight tires are about $30-40 more per tire more than tires like WTB Byway or Panaracer Gravel Kings. That's $60-80 more per pair.

You will struggle to find many people who try something like the Bon Jon Pass Superlight who do not find them to the fastest and smoothest 35mm tire they have tried. Same with the 38mm Barlow Pass Superlight. Yeah, they are that good. The people with doubts are the ones who have not owned them.

Is that worth $60-80 extra? How much extra do people pay for a CF frame? Or a high end wheelset? Or CF handlebar?. Or high end drivetrain or brake components? Tires make as much difference than any of these things (or more in some cases)

I do not have expensive tastes in road/gravel bikes. I ride a steel Soma frame with mostly 105-ish components (though I have a pretty nice wheelset) and have little interest in anything more expensive. But I do not think twice about dropping the coin on Compass/RH tires.

Are they perfect? No. The previous models were bad at tubeless. Though the newer Barlow Pass tires I got have been fine for over a year. And they are not the most robust sidewalls, so if you spend a lot of time riding on railroad ballast, you might want something different. Me? I've been riding gravel roads with them for 6 years and never damaged a sidewall.

That's my take on it.