Product review (1 stars): Don't last more than a few months
This is the second one of these I have owned.  The first was purchased from another site, but it was the 2 fan version.  Bottom line, both only lasted 3-4 months of being on 3-4 hours per day (drinking time in afternoon to get tower cold)  The both became obnoxiously noisy and this version ended up not blowing as hard once it got cold.

I love the idea, and when they are new, they do what they say.  Still looking for a better idea.