guga
7
i had a chance to have a quick play with the AK and i’ve to admit that the keyboard plays its own role in terms of workflow but having said that, you can hook a midi keyboard to your A4 and you can get almost the same feeling.
build quality: the AK feels pretty solid. at first i thought the enclosure was made out of plastic but i then realized is actually made out of metal,
then again…the A4 has been out there for a longer period than the AK so it’s probably more ‘robust’ in terms of hardware/software but nonetheless, if they both share the same DNA … well, i’m expecting the AK to get to a ‘stable condition’ pretty soon
so basically, i would say: if you want the joystick, the keyboard and some of extra features, go for the AK otherwise the A4 is still a good choice, you won’t regret it … probably a bit like the SFX-6 and the SFX-60 
…i believe you can use the knob on the left side of the screen to scroll the sounds…