I acquired the MPC Live II over a year and a half ago to be my all-in-one music box for studio, rehearsal and live use (In an alternative rock setting).
I previously used a Virus TI, OP1, OP-Z and iPad... it was a lot of weight to carry around and long setting up time!
Now the MPC replaces all this and with the built-in battery, it only takes a minute to plug the audio cable and controller keyboard and voila!
Here are my favorites features:
-Probably the best sampler on the market, with ease of sample editing, auto chop and a wonderful auto-sampler which allows use to easily capture any synth or sound modules as a multisample key group.
-An amazing array of plugin ranging from Drum synth, polyphonic VA, macro synth, E-piano, and some beautiful recreation of Odyssey, Mellotron and Solina. In addition to those free plugins, you have the option to acquire paid deep FM synth, Piano/Organ/Strings plugins, great sounding rompler and now a Mini D recreation (an MPC is the perfect GAS killer).
-A HUGE selection of effects that cover all your needs and be applied at any level of your sounds chain.
-Superb sequencer, and easy access to your favorites projects/setlists
-A wide array of connections, including a SATA port to have your samples library and project everywhere.
-And all this is in a sturdy box with quality speaker and 6h battery, allowing you to play everywhere with ease.
All this made the MPC the centerpiece of my studio and the perfect travel companion for composition abroad.
My workflow is to create songs ideas and structure on the MPC then transfer the project to the MPC software and Audio/Midi in Ableton.
However, with the plethora of effects and plugins, one could create mix and master a song totally in the box.
Then, I can bring our songs to live environment with the same instruments, launch recorded drums track if needed, easy access to live parameters with the Q-links and song transition with the XY-Fx.
You will need to invest some time to get into the MPC workflow and the few quirk and limitation. However it is more than worth it and I cannot imagine my music life without it.
Also, the new MPC keys 61, the MPC X and MPC one share the same processor as the MPC live 2 thus we can expect long support from AKAI (there have been multiples useful updates in the last year).