It's a good frame. My only problem was the Skywhatever 4 in 1 ESC doesn't fit the top part without hitting the tops of the frame bolts, and can not fit in the lower part with a typical 3 cell battery. I had to raise it up slightly with a square balsa standoff, then stick my Ardupilot control board on top of that. Unless you use this exact setup, it will not effect you though. Other than that 1 quirk, it's a quality frame at a great price.
4 park 400s equivalents and a 3s 4k battery will hover this frame at 45% power on 10x4.7 slow flys.