Completed 1650km from Pune to Kanyakumari with this in Marin 4 corner (650B 42C). No leak till date. Excellent puncture proof material. However resistance increases a bit... But I don't find that to be a problem for touring. Don't know about road bikers though.
The liners are good and do their job. Have done 200Kms on it so far, but no puncture. 1 huge downside is that the resistance is very high and they slow down significantly.
Had these for few hundred kms. Didn't have a flat but the increase in rolling resistance is very significant.
Easy to install & no more punctures
After the installation i had done 400km ride and haven’t had any puncture that too in worst roads possible with glasses and all, so can’t complaint ;). But i felt the installation was little not easy for me though as it was my first time installing, anyways not gonna remove often. Loving it