I'm loving this monosynth. The oscillator and filter both sound wonderful and classic. The signal path is intuitive and straightforward. The keyboard feel is perfect. It is really well built. I have other synths (including a CS-20M) with wider ranges of possibilities, more features, etc. but if you just want a player mono that feels great and sounds great, this is an excellent choice. Add a splitter and feed it back into itself through the ext in and you'll unlock wild, fuzzy, squelchy, screams. It rips!