EXCELLENT PRODUCT WITH A SMALL DESIGN FLAW
I am very happy with this product overall.  The steam produced is immediate and effective.  My only complaint is, there is a small design flaw.  Hopefully the designers will read these reviews.  The lid that goes over the water compartment absolutely does not fit well, and does not lock into place.  It basically just rests there.  So it's very easy to accidentally knock it off with your hand while you hold it, or even for it to just fall off if you tip the thing too much to one side.  Very poorly designed cap.  It should fit securely and lock into place.  Fix that, folks, and this thing will be perfect.
Rating: 4 stars