I went in big with the AIRA line, and the System-1 keyboard was one of the better sounding boxes. The SH-101 plug-out is really good, and in a head-to-head with the real thing it is quite convincing. I have the SH-2 plug out and a couple others as well, in addition to the latest firmware with new oscillator types. It’s even in its original box, I just don’t use it enough to justify keeping it.
https://www.roland.com/ca/products/system-1/