I eventually got these when they went on a sale after months of research. Compared to most other established brands out there these are some of the widest, in terms of internal width. With no system limit and steel spokes they are built like wheels for gravel although they are advertised for road use. Great lifetime warranty from Reserve and class leading cross wind stability. You can definitely get much lighter and cheaper wheels (even deeper) from the DTC brands these days but they usually have more restrictive system limits, use carbon spokes, and don't provide similar warranty. I think they are a great alternative to the Roval CLX III, much cheaper while being about the same weight (especially if you compare the DT180 hub variant) and as a bonus using easy to source and replace steel spokes. And they fit great on a Tarmac SL8.
I have run the 45, 50, and both color sidewalls of this tire over the past year. It has proven to be very durable, fast rolling, and hooks up well in the rough stuff. The transparent sidewall seems to weep more than the black wall until the sealant sets up. No problems after the initial setup when it comes to holding air. Measures as stated on 25mm internal hookless rims. Other tire favorites of mine are the Tufo Gravel Swampero (love it, just want to run larger than 44) and the Mezcal, (same, want to run larger than 44). This has been a great choice for a 45-50 aggressive gravel tire.
First ride of the season and I was washing my bike afterwards. Found a good sized wood splinter sticking out of my tire sidewall (not the usual pin prick like a thorn or something). Never even noticed it during the ride. I pulled it out and it sealed immediately. Amazing stuff.
I also change out my sealant every season so I can see that it's still in good shape from the prior season. Unlike the first gen Silca ultimate sealant which was completely dried out and useless within months.
Fantastic little device that is a must-have if you ride tubeless, IMO. The mount does appear a bit flimsy at first glance, but I've ridden thousands of miles both on my road bike and on my gravel bike with these things and have never lost a plug or had any issue. (I suppose you could use some electrical tape to add a little extra security to the plug/mount if you wanted.) I've had to use the plug only twice in all those miles, which I think speaks to a good tubeless setup, a quality sealant, a good helping of sealant, and good tires. The times I did need to plug, I fixed the punctures straight away and was rolling quickly. I now ride with two plugs/mounts on both my bikes, attached to the bottle cages, so that I can be ready for punctures and otherwise just not have to think about flats. (P.S. I now race cyclocross almost completely on tubeless tires and keep a plug on my CX bike as well, just in case. So far, so good.) My only complaint is these suckers are sure expensive. But for me it's a little extravagance that gives me peace of mind.
