I raced short TTs on them briefly. Can't comment on long term usage. I'd throw them on a bike now for the LOLs but I have tyres coming out my ears already.
I'd consider using them for a front tyre, matched to specific wheels for aerodynamics but I wouldn't use them in day to day life, I'm far more into fat tyres and all-day comfort.
I raced short TTs on them briefly. Can't comment on long term usage. I'd throw them on a bike now for the LOLs but I have tyres coming out my ears already.