I used Cad Crowd for assistance in the creation of 3D STL files for a leather molding system I designed. The on-boarding process was quick and easy and I found the online user interface to be very intuitive. My Cad Crowd representative, Lucian, was highly responsive and knowledgeable (and very friendly too!). It was my first time using an online 3D design service and I felt well supported as I moved through the process. I will definitely use Cad Crowd again for my 3D design needs.