It does what it says, which is great, and even more great is the fact that I don't have to manually install any dictionaries or do much configuration. The only sore point for me is the need to double click a word to highlight it, which is less practical (IMHO) than a selecting a word with the mouse and getting to see its meaning via the context menu. Some websites, including news outlets, set up scripts to show popups on double click, which is why a context menu option is more desirable in such cases. I hope the developers introduce this option in later versions.