harumachi clover sucks lol it only has the chorus so you don't get any practice with handling different sections
being only 30 seconds long is a disadvantage unless literally all you want is the satisfaction of finishing something, not improvement
if you like anime, search for "tv size" in osu! and press F2
if you don't like anime, search for "length<130" and press F2 repeatedly until you find something that isn't anime