I have a real DJI F450 as well as some cloned frames from 250mm to 800mm. This frame set is very similar to the real DJI set. The design is identical, the top and bottom circuit boards are perfect. The arms look like the same durable plastic as everyone else. Everything is packed to avoid damage in transit. Accessories are divided by size. The chassis feels very solid and there is plenty of room under the base plate for a GoPro or similar device. Assembly is easy using the common practice of loosening threads on all fittings to ensure alignment before tightening everything. Anyone looking for a class F330 frame will not go wrong with this set.