It's a pity that the 4Front Rhodes is not (yet, I hope) available for OS X, because this tinny box of pling-pling sounds is nothing like a real electric piano. This is the kind of electric sound that made the DX-7 (and later) so popular it came out, and which I got sick and tired of really quickly when everyone and his brother used it.
Maybe as another reviewer remarked this will work in some sub-Lionel Ritchie gawdaful Slow Jam ballad. If you're into that, hey, here's your sound. Personally, it's not for me.
Like the 4Front piano, this has some noise in the sample (?) but it won't be noticeable in the mix.
There is no GUI, no manual, no presets other than the basic sound.