I bought five windows from Window World (Hatfield) for by basement. Four of the five windows were measured by Window World incorrectly- they weren't even close!
A contractor and I were to install these windows ourselves. Upon noticing the wrong measurements, we called Window World only to find the owner, Rob Mato, had packed up and went to another window company. So Window World King of Prussia told me Rob Mato was a "criminal"; therefore I was out of luck and they could not honor anything from the Hatfield store. I had to pay twice for the right sized windows and installed myself.
King of Prussia Window World said "maybe we can resell your improperly measured windows and refund part of the money". That was over a year ago.
The windows themselves are average quality at best. I wouldn't recommend Window World to my worst enemy!
Product or Service Mentioned: Window World Window.
Reason of review: Not as described/ advertised.
Window World Cons: Lack of customer service, Customer service and quality.