Very effective at saving video files from major and independent video sites. Not so effective on FB or IG, but that's OK. For saving videos for use in class later, this is really great. One-click and off you go.
I see rather only positives. There is one thing that may bother or confuse some people. It is the Watermark, but Download Helper needs to give some Incentive to the users in order to be able to exist and be able to make developments.
