The second this shows up in Boston, I can personally guarantee half a dozen users without even bothering to survey. My building has a huge stolen package problem, due to the front door facing a main road, and the UPS driver for our area being an idiot. My last building had a driver who never left anything if you weren't home. While that's better than theft, it's still annoying to take two buses and walk ten minutes to pick up a package by hand. And then walk ten more minutes and take two more buses to carry the thing home. The whole process usually took upwards of two hours.
My only concern is getting the drivers to actually use these things correctly. I've found multiple packages addressed to me left outside the front door, despite explicit instructions not to do that both given by the shipper and posted on the door. Each of these packages were apparently signed for... just not by anyone who lives here. So yeah, getting the driver to follow instructions isn't going to be easy.