I'll be frank, I do learn a lot from Ewa since it's my first time diving in materials and shaders in Blender. I have experiences talking to different people around the globe because of work so I don't mind her accent.
For me she's too fast at some point and lack explanation in another. I had to pause and rewind, do some little zoom in/out to check what she's doing. Overall, if I rate her delivery and approach. 6/10.
I would like to see better/clearer explanations since it's a CORE course and my suggestion is to treat viewers as babies who need a lot of explanation. Thank you and God bless!