It is useful for anybody who wants to learn to play keyboards, especially for those who are trying to learn on their own. And most adults usually fall in this category.
If you are trying to learn on your own any help is handy, and so this tool is quite useful as you learn chords and several songs with finger position.
Does it Really Teach You to Play?
In the short term, you’ll feel good using these as you’ll at least know how some songs are played.
But then the fact is that it alone may not suffice to help you to learn to play the piano.
When you’re learning the conventional way, you learn several things such as music theory, chord progressions, sight-reading, dynamics, salient features of various genres, and so on.
Basically, you are groomed to play anything from pop, jazz, rock, to classical and other styles. In that sense, the Y.E.S lessons will not groom you to play songs on your own. You’ll need to think how the chords are applied, who they move from one chord to another, and so on, which takes time.
It's a Good Start
It definitely is a good start as it gives you the confidence that you’ll be able to play the piano someday.
Besides, you get to learn songs quickly, and if you are able to play the songs (in-time) along with an accompaniment, you will surely impress your friends and family with your keyboard skills.
The Yamaha Education suite (Yamaha keyboard lessons) is a convenient way to get started with learning to play keyboards / piano because they are built-in right on your Yamaha keyboard. It's a nice and easy way to familiarize yourself with the basics and also a handy tool to get started on some simple songs. The Yamaha Education suite should be seen as a supplement to your piano music lessons, and should not be seen as a replacement to a music teacher.