I've been spending the last days here evaluating KORG Module with the Piano Essential Pack and the demo of the Modartt Pianoteq, and there are no doubts where I will swipe my card big time.
The KORG Module sounds good, sometimes almost great, but even after tweaking and creating presets that responds and sounds the way I like (Piano) I still feel something's missing. Then I open the Pianoteq and just start to play, any ol' factory preset will do, and it's just head on the nail, the sound, the feel, the vibe, I get excited and start playing out and losing myself in it, hard to explain, it's connecting with me.
I just spent 20 minutes instinctively jamming blues after starting out browsing presets, felt just like I was sitting by a nice piano and I got totally lost in it, I'm not even a good blues pianist (I'm not a great "pianist" for the record), but it just worked, it turned me on, and it sounded really great!!!