Originally Posted by zadaw
I think it is the price, it is around twice that of Blade helis of similar sizes. The thing going for it is that you have got a highly regarded BeastX unit. Otherwise, the rest of the electronic and the mechanical design is untested.
It looks like the servos are the same as the Blade 4503D (at least I think so), so there isn't much unknown about the electronic side of this heli. The 25A ESC sounds like a typical plain vanilla ESC (from the Eflite description). Motor is not a big deal one way or another.
I look at it this way. For the price of the receiver/microBeast, I spend ~$100 and get the rest of a BNF heli. That sounds pretty cheap, if I already wanted the receiver/microBeast.