Everything I have read says they are very nice, expensive, and the latency is a killer for racing. If they were usable in any way, I am sure someone would be racing with them, but they aren't. I would search on youtube and see what all the reviews say, but for me, I use my fatsharks with my phantom and with my race/freestyle quads. Another point is that flying fpv will never be like watching the video out of a aerial photography drone, they are often high def with a huge amount of latency that would simply not work in a more acrobatic environment. When you fly fpv it is more like watching a first of its kind color tv running off rabbit ears in a strong wind, an extremely nice display would be of no use or benefit in that environment. DJI is a huge company, they have the majority of the market share for aerial photography, yet they have never been able to provide a product that can compete in races, not motors, esc's, flight controllers, video transmitters... or goggles. And when they do release something aimed at freestyle or racing, it is so overpriced and simply can't compete with other products on the market. IMHO