As a long time NI user I was excited about this release and hopeful that it would actually enhance my experience as I had written a simple Pads Custom 1 set of text actions: left, up, down, right and return. Easy to engage and importantly disengage for working in Live 12. I have MacOS Sonoma, MPB M1 Pro 32GB ram and Audient ID24.
According to my testing there is a lot to be desired since it is slow (latency) and you have to depend on the mouse for many actions. In my tests selecting the Plugin Slot only changes tab between Instrument and Effects in KK 3.4. That’s it. There is no way to choose your Plugin Instrument (Massive, Dune 3, whatever) without using the mouse. Once highlighted the menu for that plugin shows presets in the right column.
However the Select plugin preset will not work until you manually choose a preset in the list first with the mouse. Once that is done then you can traverse the presets. However on my system there is a 1-2 second delay between traversing presets. Strangely I get no sound preview without playing a key (ouch). When I traverse presets using my computer keyboard or my own custom setup on my LK I do get the preview as expected and latency is reduced when traversing presets.
Once you have a preset you can use the 8 knobs to change the first page of parameters. However, when you turn an encoder on the LK the LK Display does not show the parameter name. Just a CC number. To make matters worse in order to scroll through the parameter pages you must open up the parameter area in KK. That will show the page names and parameters. Then when you use the LK Parameter page pads to traverse the pages you will see the tabs change on KK and see the effects of the encoder visually on your monitor screen.
Getting out of this back to standard LK and LIVE usage you again must use the mouse in KK software to bring the Midi menu up and choose “return to default” which means your standard LIVE setups. All in all this is so bare bones it's hardly worth it.
I have previously owned the A25, S Series Mk1 and MKII controllers. Unfortunately the MKII controller key-bed became quite noisy even though I am a light action player. I have invested considerable time and money into NI ecosystem, and have also utilized Freelance Soundly NKS libraries to extend the usefulness of Omnisphere, Falcon, and other assorted 3rd party libraries.
Personally I find the whole setup a no go for NKS. In addition the Sub-Groups are gone for many Plugins so wading through many presets is a PITA unless you narrow the search at the top instrument or effects level by choosing assortment of filters offered. The Maschine is far better at choosing Plugins, Presets, etc. I can only assume the Kontrol Keyboard MK3 does a much better job however I have held off since I have read so many negative reviews of the implementation.
In all fairness I will add that if one uses your computer keyboard and mouse and you choose your plugin and preset, then when you open the parameter pages view in KK the ability to traverse pages and leverage the LK onboard encoders to interact with any page parameter you choose is a plus as you no longer bound by 2 rows of 8 encoders if you say used macros in live 12 as I do.