User for many years. Saves a ton of time watching videos when you can play them faster, or delete them, once you have the whole bit on your PC and and a full feature player that is not crippled like many video sources on the web. If DL is allowed it always bypass all the embedded ads.

PROS:

able to dl video from most any site, most capable of many I've tried for YEARS
updates fairly quickly, developer was able to get up and running fast when Quantum was introduced and changed everything related to Firefox, as well as changes to some video hoster sites
A lot of technical controls available to fix things yourself, if possible

CONS:

Its unclear how to donate safely, some donate links show questionable activities
Can be too technical for some users

SUGGESTIONS:

Find a better donation method, to help your income stream