This little quad flies great, I'm very happy with it. It's small and fairly quiet but smooth and powerful, very close in flight feel to a 5" but with the lower weight it doesn't fling quite as far - it's not bad at all though.

I've had several 3" quads over the past few years and I love them because they fly nice and you can fly them almost anywhere without attracting unwanted attention. When the 3.5" quads started coming out and Chris Rosser released his frame design I knew I had to try one. The frame is built like a tank but is still fairly lite and there is plenty of room for the components. The increased disc area of the 3.5" props really does make a big difference in the flight characteristics compared to a 3".

You can find the 3D printed parts I designed for this build on my thingiverse page at the link below.

Here's a flight video...