Welp... we're pretty much into October now, and that makes 5 months into Clik valve usage, and many kms of riding/experience.
Not gonna lie, I wish these things were available years ago.
The weekly loss of air is way down, minimal at most. I think I'm down to needing air maybe 3 to 4 weeks instead of weekly/two weeks.
That and the ease of filling and not needing to undo that stupid effing collar is bliss!
Presta had a good 100 year run, and I'm done. YMMV