I purchased an X4 last week, good value IMO, instructions leave a little to be desired, too much emphasis on reversing controls etc rather than correct calibration for instance.
I have bought some new blades as, during my 'learning' phase, lol, they would pop off regularly until finally they'd pop off during normal flight.
I also bought 5 of these lipos:
http://www.hobbyking.com/hobbyking/s...arehouse_.html
I soldered up a charge lead using the supplied plug & some bullet connectors so I can charge via my regular lipo charger rather than USB.
I then charged them all up & took it with me camping at the weekend
