There are great things about this addon and really annoying bugs about this addon.

>Great: video control bar that allows you to to go back the a point in the video you wanted easily. Of course the function of downloading pictures and videos, and also the option to open the picture and video in a new tab outside the main instagram page. in case you want that.

>Annoying:it often insists in saving the pics in the Download folder of windows even tho that's not where it's marked to save. It just does it anyway, it's really annoying. Doesn't happen all the time tho. But happens enough to make me wanna write this review.
Also sometimes it insists in lowering the volume to zero and it try to keep it there, you need to manually pull/slide the volume bar back so it lets the audio stay up.

If you fix these bugs i'll gladly give you 5 stars. Specially the ones where it insists in saving things on the download folder