This is an awesome add-on. Have been using it for a long time without issues aside from the occasional update downtime due to YT making platform/code changes. I decided to upgrade for the 1080HD option and it's great. Should've done it sooner. Developer is also very helpful and provides quick support. I'd say most negative ratings/reviews are due to user incompetence, browser settings/conflicts, impatience with the occasional but 'necessary' updates, among other petty reasons. Keep up the great work!!! Highly recommend this add-on, especially if you like to save videos, or watch away from YT.