THIS is the ONE, if you must have only one MIDI FX. It's got pretty much everything and goes way beyond "just" the 5 great sequencers. There's also MIDI Thru (BRAVO!!), a bushel of great modulation types for both self and MIDI CC modulation, and its own internal rack of 9 other MIDI FX, like keyboard transposing, scale filtering, etc. State of The Art, 2019—VERY well done.
Tons of different kinds of sequencers, super easy to use. Clearly the designers spent some time trying to create music with them, as operation is really intuitive, at least for more conventional kinds of sequencers. I'm glad I got it.