Yup, I'll second this. The Falcon 3D is easier to fly than a BCPP when it's working, but it's very low quality. Cheap cheap electronics, put together with soft screws which strip or break off very easily, weak mechanical parts. As ptb said, "a tinker's dream". Night and day different from a Trex.

Having said that, you may have had something wrong with your BCP as stevenh suggested, but it might also just be that you were expecting it to fly more like your BCX. No tail rotor heli is going to behave like your BCX, even a bigger heli. However it is true that larger helis will generally be easier to fly than a micro like a BCP.

I would suggest getting a good simulator and learning to fly in the sim first. After learning to hover a micro heli in all orientations in the Phoenix RC sim, I didn't find my BCPP particularly difficult to fly the first time. I'm sure that if I had tried it directly after just learning to fly my BCX, I would have had a much harder time. I know because when I first tried the micro heli in the simulator I couldn't fly it at all.