After long time I did decision and chose Grand Nord. As I had big problem to specify what will be more suitable for me between Grand Nord and Kawai CA99 I decided to share with few thoughts of mine.
I spent many hours comparing both models next to each other before buying the one.
First Kawai CA99, which is really good model. I could manage to find very good sound settings fit to my own preferences. It had really rich sound (probably thanks to sound board behind) and I could feel like playing on real piano. Big advantage is built-in speakers -- maybe not the best one (on higher volume you can hear buzz and other "unwanted sounds") but surely it looks better in home to have hidden speakers, not like in Grand Nord with 2 big speakers on it
In the end I chose Grand Nord, which has big bank of sounds and fit better for me in terms of midi recording other than piano sounds. The biggest disadvantage for me is lack of built-in cover for keyboard and needs for external speakers. Besides that, panel control is very "clean" and easy to learn. In my opinion this is made far more better than in Kawai CA99.
After 2 week of having Grand Nord, I found it very good choice. Personally, Royal Grand 3D sounds better for me than White Grand. Somehow White Grand seems to fit more to pop style and Royal Grand 3D sounds more classic -- it's personal opinion. I love possibility to add a little choir or strings in background to piano -- it gives really good results for me.
Now I am looking for better alternative of Nord Monitors -- any recommendations appreciated.
Hope this few words will help somebody.