I tried it for a few months, but never was really able to get it to work for me, although I did find the dictionary hover overlay in YouTube videos to be helpful at the beginning. Yabla is different in that they will break up a video into pieces, have you listen to it without subtitles, and then ask you to type out what you heard. This was really helpful, particularly on the advanced levels, as picking up various accents can be difficult until your ears adjust.