+1 for the SL88. I have both the Grand (at home and for gigs), and the Studio (in the rehearsal room, didn’t want to pay the extra price for the Grand). I am very happy with the feeling in the Grand, both the action and the ivory feel. The Studio is very average compared to.
I am not sure about how noisy the action is, I am mostly concerned with the playing, but my wife does comment on it when I use a headset. Let me know if you want more details.