Extremely pleased!  I have refused to have an air conditioner for 74 years.  Yet with the extreme pollution in the air [fires burning in Canada and Michigan] and the high heat index increasing in daily number over the years, I decided I had to have at least one room to recuperate and breath easily.  I was so pleased with the simple instructions.  I had some difficulty getting the inset to fit properly and ended up removing that TERRIBLE STICKY INSULATION from my windows and inset and using the foam to fill any small gap instead.  Truly impressed by this product.