The Betafpv F3 evo used to be my favorite tiny whoop flight controller. Now Betafpv F4 offers the same features but F4 is faster, more stable and comparable in price. At the moment, Betaflight 3.5 is just awesome thanks to tinywhoop's F4 flight controls. This FC lets you plunge and dive from heights you are not used to climbing or recovering from. I recommend this easy to use PC to all novice pilots, the OSD and internal RX are very valuable features. Combine it with a Betafpv 6x15 19 500kV or Betafpv 7x16 19 000kV and you have an ultra fast and agile drone.