I purchased my unit in late February due to my central air conditioning quit working and I was trying to be ready for the heat that would soon arrive.   Though it took me a little time to figure out all the ways to work it, I am now enjoying it tremendously.  The temps are now near 90 and next week will be near 100.  I have pets that stay indoors while I am working.  I am happy they will be cool and safe.  I pray it keeps working properly for a long time to come.