It's truly an analog dream machine, with an extensive set of features and abilities, and it's massive flexibility allows you to approach it as a polyphonic synth, a mono synth, and even a highly capable modular system.
Here it is in my home studio during a break from a marathon programming session...
More recently, I've been taking a little time to actually create some music with it. Although there's a number of things in progress, here's the first one to make it across the finish line...
This was an improv that revolved around using the ONE as a modular system. Everything was recorded directly to my iPad, my preferred way of working these days. I used the oscillators waveshaping and voltage controlled mixing capabilities to create timbral changes as the sequence progressed, and used the built-in effects to create ambiance (no external effects were used). I also used a pair of expression pedals to control things like panning and filtering during the recording process.
There's more to come...