I don't want to go on and on.  The rainbow is the worst vacuum I have ever owned.  Its like skipping the stone across the water, it blows it right out (not all of it, but a big portion.) I hate dealing with the water and the mud, after all when you mix water with dirt it makes mud.  I have owned all the "top brand" of vacuums and this is the worst not to mention your cleaning your house you are suppose to change the water every room. To top it all off, your cleaning with electricity and water, im not the smartest, but I know thats not good!