I have the Genos and I had the pax4 ' its a matter of taste but to me, Genos is a dream come true , its make me play and sound better than ever ,and I disagree with Bachus about the grand piano ' it is perfect the one that is the first when you turn on the key, its mezzo bright and even a little dark and the dynamics is very good 'I use it to play solo whenevere I need to play piano in jazz music and it shines in the mix with the style.
the only sound that I am dissapointed is the B3 and the Rotor simulation but i have the Nord electro 4 for this sound