The amazing team at Strymon has managed to meticulously recreate the alluring swirly sound that the Leslie rotary speaker is so well known for. It's made by Strymon so you know 100% that this a top of the line high quality pedal that allows you to take that amazing 3 dimensional sound with you on the go, or at your house without having to bother yourself with moving all that heavy, expensive, cabinets  around to get that really amazing sound like Jimi Hendrix - Little Wing.
Here are some details from the manufacturer about the versatility of the Lex:

The complete rotary system.

Lex provides you with a complete, accurately reproduced rotary system: the low-frequency bass rotor, the rotating treble horn, the tube-driven amplifier, finely tuned microphone placement, and all the complex sonic interactions between these elements.

Utilizing a ridiculously powerful SHARC DSP, every drop of processing power is harnessed to authentically represent these details

Extensive control.

You get eight parameters to tweak, allowing extensive control over the tonality and mechanics of the rotating speaker system. You can manipulate each element, from rotor speed, horn level, acceleration time, microphone distance, tube drive and saturation, and volume level.

Go from a maelstrom of dramatic, up-close, sweeping and swirling sounds, all the way to mellow, tranquil and calming undulations. All of this without a giant cabinet, microphone setup, and costly motor maintenance.

Thanks for looking, please feel free to message us any time if you have any questions.