I’ve done thousands of miles on Bontrager Hardcase tyres over the last few years. In all that time I’ve had one slow puncture that I didn’t notice until the next day and one actual puncture that had to put a new tube in by the side of the road. That was on the Hellfire Corner ride last November and if any of you were on that ride you’ll know what the conditions were like!
I think the grip is pretty good too and they have not let go on me at all on wet roads in the way that a Conti Gatorskin has. Cheap as chips as well and I leave them on my training bike all year round because I ride a lot at night as well so can’t face changing tubes in the dark.
Only downside is the carcase is very stiff but that’s down to the puncture protection layer which to my mind is a positive. I’ve dug some very big flints out of these tyres at times as well so the puncture protection layer really does its job.