I've had good luck with the Silca sealants, it's very sticky and seals up almost anything even on a road tire for me. I like that this is injectable now, I don't have to break the bead of the tire to do the pour in method. Just go slow with the injector and it won't clog up with fiber bits.
I haven't had this long enough to test the 6 month claim, but if it lasts that long, this is a game changer. I can do a spring/fall switchout and be good for the year.
I run my cross bike singlespeed, and I use it for bad weather commuting. Once my cross season tires are worn out, I switch over to something faster for the spring/summer/dry seasons. I wanted to have some puncture protection, and something big, and the 40mm version of these tires are working out great.
They roll fine. I know they aren't the fastest thing in this size, but honestly how many 40mm tires are fast rolling anyway, if you got a 40mm tire, you wanted it for another reason than FAST.
They are super cush. I run them around 30-35 psi most of the time, and it's a dream. I filled with sealant and they don't leak through sidewalls or anything.
I did mount them to a pair of 9Velo gravel wheels, and it was a tough fight. Used levers, they popped on, after that was all good though, inflated clean and held air even without sealant for days. All good there.
No issues really with the tire though, I guess they are heavy, but again, I didn't buy a 40mm tire thinking it'd be light. I wanted something to get me from A to B, not puncture, and was faster than a knobby cross tire.
In the past I've purchased the non-TLR version and had good success. These tires (TLR) went on sale, so I decided to get a pair. I recently moved to tubeless and wanted to give the tubeless version a try. I had no issues with mounting the tire nor any problems with getting the tire seated and eventually filled with Orange sealent/inflated. I've only conducted some short rides- close to home- to ensure the tire tubeless DIY job worked. So far so good. I look forward to riding many miles with this tire.
Latex tubes are fantastic! They're lighter and a whole lot easier to deal with than tubeless, have incredibly low rolling resistance, and provide a next-level supple feel. For all that, they're still very durable, and are in my experience less prone to pinch flats than butyl tubes.
Some folks here have complained that they don't hold air, and that's true. Compared to butyl tubes or even tubeless, they lose air faster. You need to expect to add air to your tires before every single ride, with no exceptions. If that's too much for you, then you won't like these tubes. However, if you can get over that, you'll love them. Especially when paired with a good supple tire like the Vittoria Rubino Pro.