I have owned 2 Corona IIIN models... buttons did not wobble. I lkied them...
far superior to the standard Carona...

I have owned a couple Corona IIIR
They are very slow and large and complex switch slides that jam and they are very quiet, particularly the inner row. And the buttons wobble.

The Baffetti GL2 with 4 reeds that I have played are very sensitive to the touch, and a very expressive box that will take heavy -play.


Good luck.

I've only tried one III N, at an accordion festival, and it wobbled. I think I tried a III R at the same festival, possibly at another time, and I don't remember it wobbling.

I wish there were more stores where I could walk in and try them off the shelf. None in the stores around here. Just cheap chinese one or two voice crap.