If you have not decieded yet, Klavis twin waves should be on your watch list also. I got mine specifically for doing the whole fm thing for my other oscillatiors.. All the basic functions are on the front panel. No menu diving. It has octave switching as well. Being Digital it has crap-ton of wave shapes, with a built in wavefolder Sense it contains twin oscillators, the second one is normalled to through zero FM. If you don't have a though-zero oscillator it would be a good introduction into it. personally I use the second oscillator as a noise source into a submixer for my analog oscillator.