Difficulty level = Easy, but some concepts still went over my head.
Pro's = The author has saved the correct code at the end of each section on Github. This is a big advantage over something like Michael Hartl's book and many others which leave you crawling the web for hours looking for the answer to your mistake. This is a big pro for me and I would guess will become the norm in tutorials.
Cons = I got bored by the security bit. But I get bored very easily.