I've read a lot of MacBook reviews where the keyboard first felt a bit odd but later on the reviewer actually prefers it to the old keyboard. But there is of course a "learning curve". I guess some people hate that curve...
It's not that bad but it's without a doubt not better than the MBP keyboard. I have full (ok not full, just a bit) confidence that Apple can make it better. I'd certainly be surprised if they go butterfly and it's not a bit better than the MB keyboard.