I'm glad you like him! I have exchanged a number of emails with him several times over the years and find myself really liking his approach. He takes a lot of pride in his courses. Much like Griff, at the slightest hint of a problem or complaint he jumps all over it to fix the issue. Let me know if you have any problems playing single notes as I have a really good resource for that.
Also, make sure to start off with a good quality harp as there is a huge difference in playability between a cheap one and a moderately priced one. If you don't want to spend much and don't mind buying from China, these are the best budget harps I've ever seen: https://www.aliexpress.com/item/4000054733027.html?spm=a2g0s.9042311.0.0.1bba4c4dflwbS4. I have a complete practice/backup set, and they sound and play very well (the price on Amazon is about double). Otherwise, any of the German or Japanese made $25+ harps will generally be reasonably good.
Yeah, I have no ability to play single note on purpose. They come out randomly now and then.
So my $30 set of 7 harps won't cut it?