Surprisingly strong until it caught fire after a 30ft barrel and crash due to a short in motor #3 ESC wires. This was during light testing on the first flight to tune the pids. Definitely the coolest crash I've ever been in. The lipo weighed 160g, 4s, 1500ma, the quad had no problem with that (looked like a 10oz swallow carrying a 20oz coconut, an African swallow of course). I had enough fun with it that I ordered a replacement instead of a refund. Remember that soldering motors to ESCs is very difficult, even for someone with a good soldering station and reasonable skills. This is related to the distance between ESC pads/pad size and wire size. This can be the reason for the failure. I would recommend soldering the JST connectors to the ESC and terminating the wires that way. The flight controller allows you to choose between LEDs and VTX, you will need to remap the LED strip as the included VTX is not the version that plugs into the FC connector.