Many of the courses are also available on udemy.com, and on there they each have at least a couple of sample videos so you can get an idea of the instructor. I watched a few, and while the content seems reasonable, there is a LOT of very excessive repetition. Like, one ten-minute video going through each of the 7 chords in C major (which is already probably twice as long as it needs to be) -- and then another going through the chords in C# major. And another in D major. And another.. you get the idea. Many of the courses have overlapping material as well.
From what I can tell, the information is correct, and mostly clearly presented, but saying the video runtimes are "padded" would be generous. Now to be fair I'm a reasonably accomplished pianist already (I was more interested in the composition/theory videos), so someone starting really from scratch may get more value. But I do think you'll be tearing your hair out at how slowly you're progressing.