Vufold is one of those rare companies that excels in both quality of product and customer service, while still offering competitive prices. We recieved two external bifolds and they were able to be installed with ease, as advertised. We had one intermediate handle that was slightly damaged and customer service sent a replacement out next day delivery, allowing us to finish the project on time. We went for the grey framed status line offering us a cill-less threshold, making for a great inside to outside space and some great thin profile frames. Great doors! Great people!