I've purchased the controller and started the set-up, which you unsurprisingly need a preset manager for. To install a preset manager (which btw is unbelievably wonky), you need to register at the AKAI website and use "inMusic Software Center" first. Upon installation, it suggests you check out some free software that comes with the controller, which is AKAI's own MPC Beats (a DAW) with a couple of sound packs, and three plug-ins: Hybrid 3, Mini Grand, and Velvet. So I've decided to give it a try. The MPC Beats ran OK, but the plug-ins did not run at all. And the worst part is that my Logic Pro X started freezing upon launch. Every time I opened it, it just said “updating information about audio unit plugins” and swiftly proceeded to stop working. So I uninstalled all the AKAI stuff, deleted Logic's cache, which (to my horror) didn't help at all. Then I tried reinstalling Logic, which was also not effective. After a few hours of crying and googling, I was able to exterminate all the traces of dreaded AKAI software, which finally allowed my Logic to run again. You can't uninstall anything from the "inMusic Software Center". It only gives an option to install or download again and install again. To delete everything, you need to access all the hidden folders and manually remove all the files (here I should mention, that deleting any plugin is not exactly a straightforward process, but still).
The controller itself is fine, btw, but my experience is a bit tainted by the included software and by my Logic almost going down with it. It would be fine if it just didn’t work on its own, because it’s a) free and b) not essential in any way. But not working AND breaking other stuff is something else.
In conclusion: avoid associated free software like the plague.