I have an axe cp l and i have changed the receiver to digital so i could use it with my dx6i. It is now a great little heli, i have an blade 400 which is alot better because it has the gyro and i changed the servos. Almost all helis are going to need some kind of upgrades but the axe is ok to play with and i love to fly it around, now that i got rid of the stock receiver and transmitter.