Once set up, the AC was excellent.
There was one con and thus the 4 out of 5 stares, but I am still a big fan of this AC (regardless).
One of the "Tabs" on the sliding window adapter will not stay snapped so I had to us a bit of duct tape while contact the manufacturer for a replacement.
To swap out the part will take 5 minutes so if the manufacturer sends me a new part, then that will a show of great customer service. 
The DUAL hose and the sliding window adapter are wat makes this AC stand apart from single hose and sash window only installations.