Four calls to each guest seemed like a lot. Did those guests actually like getting multiple calls, or did a bunch of them tell the hotel to stop and just do the email instead? I'm wondering if that personal touch cost more in annoyed guests than it helped in trust. Feels like there's a tipping point between "we care" and "please leave me alone.

missed spots" is a technique issue, not a tool issue though.

Once patted toner on with a cotton ball for a solid three months before realizing it was for removing nail polish.

Feels like that happens with everything nowadays, not just tile. You pick something once, hope it works, then realize you should've gone with your gut instead of what looked good in the store.

Man, a whole mound site gone in just three years? That's crazy fast.