I bought a Ferrofish a couple months ago and sent it back. Personally, I didn't care for the included Leslie sim and getting around the OS was not live friendly. FOR ME. I'm awaiting the Voce 5 and hope I can use it with either my s950 or PX-360. If not, the seller is permitting me a trial period. I'm really trying not to add a second keyboard, but maybe a Reface YC or even a Roland VR-09 might be needed. Damn, I miss my G-70; to this day I haven't found a keyboard that meets my need like it did.