A very good post, as usual. I also really like the sneak preview. Probably I will never have this experience on my phone, because I flashed already to Crimson, and it works already well.
I would encourage people to report discovered issues on Crimson here, as suggested in this earlier blog. But, first check if the issue has been reported (and maybe closed already) before reporting. Or discuss any issue on Crimson in this nice forum thread about the Crimson experience.