For number 3, it was the same with me, I found there to be no spelling errors. One thing that would help me and maybe a few other people (mainly ADHD people) is more types of fonts. The reason I say that is because with certain kinda fonts ( for contexts me and all my ADHD friends tested this and we all have it severely, including many other things like ADD, Autism, etc.) me and my friends had a hard time reading words with certain fonts(The one the Vahnya has were some of the ones I have a hard time reading). I have no idea how that works, but if someone how It works please let me know, I am curious.