Pros

✔ I have asked a lot and @skavish always answered fast and honestly.
✔Animatron is an awesome tool.
✔ Wave.video has some nice features

Cons

❌ Not GPDR compatible. If you host videos in Europe you'll get issues or you'll find a method to ask for consent of visitors before personal data is transferred (source: https://appsumo.com/wavevideo-animatron-studio/#q433293)
❌ Wave.video assumes no liability for copyright infringement (source: https://appsumo.com/wavevideo-animatron-studio/#q429288)

<strong>Wave.video</strong> -> Stocks are from Storyblocks, Getty images, Shutterstock, Unsplash and Pixabay
<strong>Animatron</strong> -> Videos, Images and Audio are from Storyblocks, Rest is designed an devleoped by animatron.

@skavish wrote to my queation "who assumes liability":
Storyblocks, Getty and Shutterstock in case you used their assets. Unsplash and Pixabay a bit more complicated, please read the links I posted.

Who is a bit longer in this business does know, that you can't use <strong>Unsplash and Pixabay</strong> without risk.
<strong>Getty</strong> -> in german language: https://www.abmahnung.org/getty-images/
<strong>Shutterstock</strong> -> https://brutallyhonestmicrostock.com/2019/01/07/why-shutterstocks-copyright-infringement-problems-should-concern-you/

And at least <strong>Storyblocks</strong> I asked Storyblocks. It took 12 days! to get answers, first replies sounded as if a bot had replied. These had been no answers to my questions, only a cite of license page. However. finally Jason from Storyblocks answered:
<strong>We are not affiliated with wave.video. They will need to help you!</strong>

Days before, I asked Wave.video (here on Appsumo) <em>2.) Let's say there is a copyright infringement and I contact e.g. Getty Images, but they tell me they are not responsible, how does wavevideo support us then?</em>.
The answer of @skavish was: <em>2. contact our support. but I can tell you that in our 3.5 years of being in business with wave we never had any single copyright infringement case</em>

That's fine, we can talk (/sarcasm) but no word of liability no words of the sum in Dollars, <strong> they! will pay</strong> in case of a copyright infringement.

So Conclusion:

Don*t use any image, video, audio from wave.video or animatron or take the copyright infringement as your own risk.
Don't use wave video hosting or find a method to ask for consent of your visitors (GPDR).

Why still 3 stars and not Zero (1).? The programs itself are great. If you use self licensed stock resources you can make outstanding videos.