So far, flawless. I'm using Bonty TR tires (XR in the front, and I believe the revolt super in the rear). Both are super light and aired up easily. I'm using the stans regular strips, using their thin spoke tape only. Not using any cloth tape. First time, I mounted the front tire, w/o sealant to see how it worked, and held air all night. I even took it for a ride. Never burped at 28 psi w/ 155 lbs on it. I added stans juice for protection. Back went smoothly too. Only issue is the tight bead, but I like it since it makes me feel confident it won't burp and roll off. Just try to pre stretch the bead a bit before and you'll be fine. Good since last fall. I've added additional juice once.
Actually, I had an issue with a defective front tire. I went riding on the road with the girlfriend, and aired up the tires to 40 psi. After 5 minutes, I heard hissing. I checked the tire and saw a side wall bulge. Stans wouldn't seal so had to walk a few blocks home. Took off tire, and it looked like someone took a utility knife and sliced the inside of the casing. Don't know how it happened, but can't get a replacement. I've called it bad luck and too high pressure. I won't air it past 35 in the future, and will keep riding the same tire combo.