Though only having and using the product for a short time (less than 1 min) , and having to return it for reasons not concerned with the product's functionality and quality in anyway.

Machine itself is high quality, the hose and other attachments are of good quality; except for the window panels they were of lesser quality. The window panels were easy to install together, but they were not created for all window types. And there was an issue because of having a distinctive different type of window. 

Basically the inside of that window had a hollow center, and the panels were not high enough to remain in that position properly.  A position that would have made the installment inside the window completely improper. Also, the panel design will allow for air to easily escape, and it could lead to negatively impacting temperature in the room.