Good First lesson, I'd say.
I have a bit of a nag about somthing in your grammer session of the study, though.
When you get to the lesson on the subject particle, you spell it in romanji as "Wa," but despite that being the way the particle is pronounced, it is spelled out in romanji as "ha."
I hope this does well. There's no replacement for a good few years of studying in a good class, but this is an effective way to get a head start.