I got this for my own little princess, and this dress is spectacular.  It is well made and able to handle the rough tumblings of my four-year-old!  It is machine washable, and, having been through my washer twice in the week that we've had it, shows absolutely NO WEAR!  It still looks brand new!  I will definitely be ordering from this particular manufacturer in the future!

update 2/22/2013

Noticing that this product is still available on Amazon, I just wanted to note that after 2 years this dress is still going strong.  It no longer fits my oldest, but it has been passed down to her sister, and it still is in perfect condition.