I read it and enjoyed it, but you must be warned it's for serious readers. There are hundreds of characters and events, and it keeps several threads open at once, shifting threads at almost each chapter and re-taking them later. It may be confusing if you're not used to complex narration.

On the other hand it's very amusing in its variety, and characters are so living it's amost supernatural how Tolstoi brings them to life.

I really liked it and could had kept reading it for 500 pages more.

It can get to be heavy going at times - Pierre's dabble with numerology is funny-ridiculous, but the surrounding mystic masonry and suchlike is sleep inducing.  Having said that, its well worth the go.  I couldn't put it down (until the aforementioned!).

There's a new translation out in Uk - with much of Tolstoy's original french dialogue left intact.  The translators reasoning was that the French was a feature of the upper classes that marked them off, and that it would serve the same purpose in an english version of the book.  That probably damns its US sales...