Love it!! Have 2

I have 2 of these units for twins' rooms. I bougth them at target for around 120 each. I did so much research on this site first and decided I wanted a good name, a life-long hepa filter, and something not too noisy. This was after I had bought a hunter version that ended up not having a true hepa filter (it said hepa-type - which is not the same thing),
These take no time to set up. You take the filters out of the bags, wrap the grey prefilter around the big hepa filter, slide it in and screw on.
I dont think this is noisy at all. My kids need white noise when they sleep (they use sound machines) - so its no problem. It may be too long in a tv room - especially on medium or high. We always run it on low and just keep it going constantly,
It says you need to changet the prefilter periodically (when the light comes on), but I just vacuumed it. I loved seeing all the dust on the filter - letting me know it works. I have to say - there is no dust in my kids' room anymore!!!! I have to dust my room and the other rooms all the time, but theirs look great.
There is a blue light for the power, but I don't think it's too bright,
I definitely recommened this, especially since it is a very trusted model and replacement prefilters are so easy to find.