I bought this on sale years ago and when I first put it on, it did change colors! After a day or two (if that even,) it stopped, so I reapplied the polish after removing the old and it stopped changing completely... However, I am not angry; it is one of my favorite colors and is pretty much a one-coater.
I wouldn't mind getting more temperature changing polishes, but only if I know which shade it ends up once the color changing aspect expires. I'm pretty sure whatever color it starts out as will be the final color, but I haven't really tested out any other colors or brands that do this gimmick.