Somewhat, but not really. The original Univibe was an attempt at making an electronic effect that sounds like a Leslie, but it fell short. What a vibe really is is a phaser with some chorusing in sync with each other and it's also my favorite swirly sounding effect. I've heard good things about the Boss and Hughes & Kettener rotary simulators but never tried one. IMO, the only way to really get that Leslie sound is to use a Leslie; there is just way too much going on with a Leslie cabinet in a room (Doppler effect, reflections, phasing...) to properly capture the effect electronically... at least, so far.