While the playing itself is above beginner level,
PT presents music theory in a very easy-to-grasp way that really de-mystifies it. I would actually recommend it to any beginner purely for that reason. No, it doesn't have chord charts, fretboard diagrams, etc. - but while you're going about learning those things from other sources, you can use the theory in PT to understand
how those chords are constructed,
what makes them minor, 7th, etc., and why certain chords are usually found in relation to each other in a song. It also makes learning the fretboard much easier than having to progress up each string fret by fret "counting" the notes off.
The concepts for improvisation are beyond beginner level - I'm far from fully grasping them yet - but there's a LOT of information in PT that I wish I'd had right when I was starting out. It presents everything in a much simpler and more logical format than a lot of the other books/instruction programs I've tried.