Here are some resources you can find on YouTube regarding Quaverato. Actually, you would do better to just go to YouTube and search for “Quaverato”.
Here’s a wonderful (unpaid) review video by Shnobeltone.
Pedal of the Day made a nice demo video, and also published a review here.
Paul at DIY Guitar Pedals in Australia made this thorough KIT overview video, with a build video to follow.
The Tone King unboxes a Quaverato.