Story, Art, Characters, Development, Pacing and simply Dancing is perfect in this manga. You'll find an awesome story with unlimited development and improving potential. Tomo Takeuchi is a genius, her drawings, her story and the amount of emotion she's able to transmit is unmeasurable.
Usually this type of manga is pretty straight forward, with all the power of friendship and weird "Powerups", here everything is set perfectly and it's not always happy, our protagonist has a loooot of troubles and things to improve. Throughout the story, he changes drastically as a person and as a dancer.
I'll give this manga a 10/10 in every aspect, since everythimg is set perfectly.
I even started dancing as a result and I've never been happier...
To conclude, read it, you won't regret it.
Please just send the best energies to the author so she remains healthy and we are able to witness the end of this marvelous story :)
