I also bought this after seeing the video on YouTube. I am very happy with it so far. I have used several types of frames and this is my favorite so far.
I purchased an all black frame with DAYGLOW front arms that really helps with orientation. As mentioned in the other review some basic instructions would be nice or a video link showing assembly. I did have to shim an arm or 2 to get all motors level as the 3D printing isn't perfectly square on all parts. I have flown daily for several weeks and haven't crashed yet so I can't really speak to how durable it is. I fly with Gemfan 5030 props which fit without modifications. On my polycarbonate frame I have to lower the mid section or cut down the props to fit. Not so with this design, they fit right on. I have not broken out a scale to compare the weights of all the different frames but it seems comparable. I am happy with my flight times.
Overall I would definitely recommend this frame as a nice option. And the customer service was great. Thanks Gorilla BobRating: [4 of 5 Stars!]