Super helpful, just make sure you're hovering over the right part of the icon-- I made the mistake of hovering over the full-color image, which won't bring up the tool-tip, but when I hover over the smaller unit icon (the one that's in the colors of the Civ you're playing as, which matches the icon used on the map) the tool-tip appears as shown in the example image. Not sure if this mix-up is what happened for previous commenters who wondered why it wasn't working, but figured it's worth noting in case anyone else gets confused!

Did not work for me, Civ V complete edition.

has this stopped working suddenly for anybody else?

Amazing work.

Probably because not enough upvotes?

Huh how did this vast improvement of an Overhual get burried so horribly?