I'm using the 5000 tubeless version on my other bike (25mm wide) and have over 1600Km with zero punctures).... I think that the 32's in tubeless will be amazing!
They are (32mm TL), and thank God they make that size. I think I have an unfair advantage when doing high speed road rides with roadies. Not only are they at 8.3 watts resistance (really, 22 watts for a pair at our speeds), but even for the roadies with the same tire - I'm running half their pressure as I have so much volume. Our roads around here are horrible on 25mm tires (besides, someone is always pinch flatting every week it seems). At least the TL version has tougher sidewalls which will help in gravel. Still, if you are on crushed limestone (or the equivalent) you shouldn't have any sidewall issues.
Its not puncture proof, but if you put a priority on speed on less than ideal surfaces, nothing comes close.
Schwalbe and ReneeHerse have good alternatives, but the 32mm 5000 is in a league by itself.