I grabbed it yesterday. Nice update. These developers are on a roll, it can only get better from here!
I got Waveform 8 when it was released last year. It is a fun tool to create music with. Very intuitive, and you only need to go deep if you want to, there is a lot of capability under the hood!
The MIDI editing window, MIDI pattern generators, step sequencing with step clips, new mixer view, Melodyne support, were all part of the original Waveform. But this update adds a global chord track, a multi sampler, track LFO modifiers, custom plugin faceplates with plugin macro parameters, and multi-track presets.