Bachus, I can see that this controller is for a small niche market. I like its compact form factor in a flight case. However, it's pretty heavy at 52.9 LBS! Once I was thinking of getting the Roland A-88 very compact and 35 LBS. If one is looking for an ultimate 88 key controller, it gotta be the Pysis K4 Ex

As for me, I decided to have a controller at least with a built-in piano sound just in case you don't have your module/notebook. That's the reason I purchased the Numa Stage piano. Now I enjoy the Numa Compact 2x especially its audio over USB feature. So convenient. I wouldn't mind getting a new Casio 88 piano with audio over USB.