Congratulations on your new piano. I hope that you really like it. I suggest you go ahead and download the manual and read through it while you're waiting for your board to arrive. It will give you a good head start. You might also want to go ahead and download the latest OS and the Sound Manager software (along with any samples or pianos that you might want to load onto it).
Also, Nord is really good about updating their sound libraries with new sounds and samples, so it's worth checking the nord website from time to time to see what's new. They just recently (last christmas) released a new Fazioli grand piano sample which is absolutely beautiful, and in the near future they're going to release a new Yamaha U3 upright piano sample.
As for the keybed, there are definitely issues with it, but I think they're overblown by people. The keys are annoyingly noisy (really wish that Nord would put some sound dampening material in their boards to reduce that, surely they could do that without adding much to the weight or expense). But that's really not much of an issue if you have the sounds up at normal volume (if your wife is trying to sleep in the next room while you're playing with headphones on, it might be an issue though
As for the action, I think it feels really good. Opinions vary, but don't be surprised if you find you really like it. It felt a bit weird to me when I first got it, but now I love it. It's much lighter than what I was used to (yamaha p250 and my parent's old upright gulbransen piano) but it's still substantial enough to have a good feel. More importantly, it connects really well to the sounds.
Good luck with it....