It's a startlingly competent CMS these days, and for "easy editing" it probably can't be beat - it's well built from an editors backend perspective, and there's no end of more or less useful tutorials about using it(and nearly everyone knows someone who's used wordpress before).
I've tried Wordpress for this purpose in the past, and just took a look at it again, but since I don't need, and in fact don't want a blog or comments, these are just extra complexity that need disabled. In the several minutes I looked, I could not even find a global comments disable option. (Unless this is different for Wordpress.com hosted blogs.)
Also, Wordpress has such a bad reputation for security that I would be hesitant to use it even if it offered the best in page organization and editing. This could just be a consequence of it being the biggest target, but its not something I want to deal with.
Have a look at http://www.tokens.com.au/ for example.
On the security reputation front, yeah, Wordpress does have a somewhat deserved bad rep, but the only times I (or any of our customers) have been bitten, it's been ultra-cheap shared hosting that's laelyt blame (along with Wordpresses php-reliance and it's need for guessable-path world writeable directories in the web root...)