Just doesnt hold a candle to extensions like TWP at the moment. Even ignoring the sometimes worse translations or the extension often not recognizing what language is being looked at without refreshing the page, the user experience just feels clunky compared to the competition.

The menu (just like firefoxes ctrl + f findbar) needlessly stretches across the whole screen for no reason. It also doesn't close when you click the addon icon again. I am sure others have named other little annoyances with it. Call it nitpicking but as they say, a death by a thousand cuts. I hope they improve on all of this and will check back in on this extension in the future since ideally I dont want to have to use an extension for something like this in the first place and would love if mozilla perfects this and ultimately adds this natively to FF.