So far, so good. They're easy to talk to. I came in with a crazy contraption that I've been making out of materials from Home Depot that I wanted done all out of a strong but lightweight plastic. They were reasonable pricing for a prototype (Under $200... their competitor quoted higher, while telling me it probably wasn't going to work). Once the prototype was made and I tested it out a bit, I made a few slight changes and placed an order for 6 more. Those will be done this week, and then I'm in queue for my next order. For a project I was told would be impossible by others, they seemed to make it happen with ease.
Note: they do have a line of projects so typically it will take 2-3 weeks for production time. (At least for my project.). Not unreasonable; just something to keep in mind!