Rated 2 out of 5 stars
It's nice, but I find the Windows version lacking because the text is too small and grey in colour, which makes it hard to read.
I like "Smaller Tooltip" better as it shows the tooltip in normal size and black. But I miss having the little icon, and having the Alt-text bold.
In "Smaller Tooltip" both the alt-text and the URL are of the same formatting, which I feel makes it ugly. But Tooltip Plus is also ugly because it has a box-in-a-box for some tooltips, and the tooltips are big with unnecessary padding.