Well Diki....of course you are right...BUT Yamaha does have fantastic sounds & styles if nothing else....so there lies the BIG problem of Choice & Settling for LESS or use Another brand arranger that's not as good BUT has more at least usable features that YOU NEED for you purposes & you'll live with....or mix a few pieces of gear together to achieve some sought of happiness also.....
its a balancing act that never ends..
your own tolerance is the key.
"Perfect" in ONE PACKAGE so far doesn't exist in the arranger world.