Hello,
I confirm, the Genos is an excellent arranger, the top of the range in its category at Yamaha.
As with any instrument and the like, it must be well maintained and the previous advice in this direction is very judicious.
Clean hands, balanced play, dusting, transport in good conditions if necessary are essential.
A fragility, however: it lies in the thinness of the connection pins of the sound system despite the connection guide.
Considering the price you paid for it, I deduce that this model is new, therefore under warranty.
During this period, you will have time to make up your mind.
Last point, before buying a good of any kind, I always consult the opinion of consumers and it is only when it is positive that I make up my mind. I don't wonder afterwards.
Have a good week-end
Christian