Learning musical notation is not the hard part of playing music; getting your instrument to make the right sounds is. Changing the notation doesn't make that any easier.
Also, if you've only learned this new notation, you'll be unable to read any of the 99.99999% of music that has been published in the conventional notation over the last few hundred years. It would be pretty limiting, somewhat like learning to speak a language that's only spoken on a small island in the Arctic Ocean.
It depends on the instrument. For melody / monophone instruments (woodwinds, brass and to a lesser extent strings) musical notation is easy. For piano, it's easy once you master the bass clef. For guitar, it just never gets easy because the score has to be full of fingering information to make it even remotely clear where on the fretboard your fingers should go.
the only problem with this to me is that this new notation simply seems to add redundancy to the score, repeating information which is already there,but not adding much new.
Also, if you've only learned this new notation, you'll be unable to read any of the 99.99999% of music that has been published in the conventional notation over the last few hundred years. It would be pretty limiting, somewhat like learning to speak a language that's only spoken on a small island in the Arctic Ocean.