Default [Q] Is the phone too big for one-handed use?

I'm considering getting this phone. It's available for preorder where I live. Although I am a bit concerned about the large screen size which is 5.5 inches. Is it still comfortable? I know that bigger is better when it comes to viewing experience, but do you get used to it eventually? I currently own a blackberry (lol) so this will be a major shift for me.

Thanks.